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Finding the Fourth Proportional to 374,683.70, 562,025.55 and 280,205.30

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Solution

The fourth proportional to 374,683.70, 562,025.55 and 280,205.30 is: 420,307.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,683.70 : 562,025.55 = 280,205.30 : x
  2. Step 2: Convert to fraction form
    374,683.70/562,025.55 = 280,205.30/x
  3. Step 3: Cross multiply
    374,683.70x = 562,025.55 × 280,205.30
  4. Step 4: Simplify right side
    374,683.70x = 157,482,537,845.42
  5. Step 5: Solve for x
    x = 157,482,537,845.42/374,683.70
  6. Step 6: Final answer
    x = 420,307.95

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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.