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Finding the Fourth Proportional to 283,365.62, 391,044.56 and 156,040.92

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Solution

The fourth proportional to 283,365.62, 391,044.56 and 156,040.92 is: 215,336.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,365.62 : 391,044.56 = 156,040.92 : x
  2. Step 2: Convert to fraction form
    283,365.62/391,044.56 = 156,040.92/x
  3. Step 3: Cross multiply
    283,365.62x = 391,044.56 × 156,040.92
  4. Step 4: Simplify right side
    283,365.62x = 61,018,952,903.40
  5. Step 5: Solve for x
    x = 61,018,952,903.40/283,365.62
  6. Step 6: Final answer
    x = 215,336.47

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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.