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Finding the Fourth Proportional to 656,673.78, 985,010.85 and 158,037.78

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Solution

The fourth proportional to 656,673.78, 985,010.85 and 158,037.78 is: 237,056.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,673.78 : 985,010.85 = 158,037.78 : x
  2. Step 2: Convert to fraction form
    656,673.78/985,010.85 = 158,037.78/x
  3. Step 3: Cross multiply
    656,673.78x = 985,010.85 × 158,037.78
  4. Step 4: Simplify right side
    656,673.78x = 155,668,928,009.91
  5. Step 5: Solve for x
    x = 155,668,928,009.91/656,673.78
  6. Step 6: Final answer
    x = 237,056.71

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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.