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Finding the Fourth Proportional to 283,448.52, 391,160.04 and 156,123.81

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Solution

The fourth proportional to 283,448.52, 391,160.04 and 156,123.81 is: 215,451.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,448.52 : 391,160.04 = 156,123.81 : x
  2. Step 2: Convert to fraction form
    283,448.52/391,160.04 = 156,123.81/x
  3. Step 3: Cross multiply
    283,448.52x = 391,160.04 × 156,123.81
  4. Step 4: Simplify right side
    283,448.52x = 61,069,395,764.55
  5. Step 5: Solve for x
    x = 61,069,395,764.55/283,448.52
  6. Step 6: Final answer
    x = 215,451.45

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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.