Home / 280,120,200.90-420,180,301.35-183,374,319.30

Finding the Fourth Proportional to 280,120,200.90, 420,180,301.35 and 183,374,319.30

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Solution

The fourth proportional to 280,120,200.90, 420,180,301.35 and 183,374,319.30 is: 275,061,478.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,120,200.90 : 420,180,301.35 = 183,374,319.30 : x
  2. Step 2: Convert to fraction form
    280,120,200.90/420,180,301.35 = 183,374,319.30/x
  3. Step 3: Cross multiply
    280,120,200.90x = 420,180,301.35 × 183,374,319.30
  4. Step 4: Simplify right side
    280,120,200.90x = 77,050,276,743,325,136
  5. Step 5: Solve for x
    x = 77,050,276,743,325,136/280,120,200.90
  6. Step 6: Final answer
    x = 275,061,478.95

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.