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Finding the Fourth Proportional to 625,435.34, 938,153.01 and 152,121.02

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Solution

The fourth proportional to 625,435.34, 938,153.01 and 152,121.02 is: 228,181.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,435.34 : 938,153.01 = 152,121.02 : x
  2. Step 2: Convert to fraction form
    625,435.34/938,153.01 = 152,121.02/x
  3. Step 3: Cross multiply
    625,435.34x = 938,153.01 × 152,121.02
  4. Step 4: Simplify right side
    625,435.34x = 142,712,792,797.27
  5. Step 5: Solve for x
    x = 142,712,792,797.27/625,435.34
  6. Step 6: Final answer
    x = 228,181.53

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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.