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Finding the Fourth Proportional to 150,257.67, 207,361.16 and 85,737.40

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Solution

The fourth proportional to 150,257.67, 207,361.16 and 85,737.40 is: 118,320.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,257.67 : 207,361.16 = 85,737.40 : x
  2. Step 2: Convert to fraction form
    150,257.67/207,361.16 = 85,737.40/x
  3. Step 3: Cross multiply
    150,257.67x = 207,361.16 × 85,737.40
  4. Step 4: Simplify right side
    150,257.67x = 17,778,607,260.22
  5. Step 5: Solve for x
    x = 17,778,607,260.22/150,257.67
  6. Step 6: Final answer
    x = 118,320.80

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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.