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Finding the Fourth Proportional to 203,073.85, 280,315.50 and 118,190.93

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Solution

The fourth proportional to 203,073.85, 280,315.50 and 118,190.93 is: 163,146.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,073.85 : 280,315.50 = 118,190.93 : x
  2. Step 2: Convert to fraction form
    203,073.85/280,315.50 = 118,190.93/x
  3. Step 3: Cross multiply
    203,073.85x = 280,315.50 × 118,190.93
  4. Step 4: Simplify right side
    203,073.85x = 33,130,749,638.42
  5. Step 5: Solve for x
    x = 33,130,749,638.42/203,073.85
  6. Step 6: Final answer
    x = 163,146.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.