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Finding the Fourth Proportional to 207,397.70, 311,262.70 and 95,130.86

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Solution

The fourth proportional to 207,397.70, 311,262.70 and 95,130.86 is: 142,772.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,397.70 : 311,262.70 = 95,130.86 : x
  2. Step 2: Convert to fraction form
    207,397.70/311,262.70 = 95,130.86/x
  3. Step 3: Cross multiply
    207,397.70x = 311,262.70 × 95,130.86
  4. Step 4: Simplify right side
    207,397.70x = 29,610,688,336.92
  5. Step 5: Solve for x
    x = 29,610,688,336.92/207,397.70
  6. Step 6: Final answer
    x = 142,772.50

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1.5x scale

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.