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Finding the Fourth Proportional to 310,834.68, 428,951.16 and 174,868.68

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Solution

The fourth proportional to 310,834.68, 428,951.16 and 174,868.68 is: 241,318.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,834.68 : 428,951.16 = 174,868.68 : x
  2. Step 2: Convert to fraction form
    310,834.68/428,951.16 = 174,868.68/x
  3. Step 3: Cross multiply
    310,834.68x = 428,951.16 × 174,868.68
  4. Step 4: Simplify right side
    310,834.68x = 75,010,123,133.67
  5. Step 5: Solve for x
    x = 75,010,123,133.67/310,834.68
  6. Step 6: Final answer
    x = 241,318.39

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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.