Home / 283,454.90-391,167.72-156,130.50

Finding the Fourth Proportional to 283,454.90, 391,167.72 and 156,130.50

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Solution

The fourth proportional to 283,454.90, 391,167.72 and 156,130.50 is: 215,460.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,454.90 : 391,167.72 = 156,130.50 : x
  2. Step 2: Convert to fraction form
    283,454.90/391,167.72 = 156,130.50/x
  3. Step 3: Cross multiply
    283,454.90x = 391,167.72 × 156,130.50
  4. Step 4: Simplify right side
    283,454.90x = 61,073,211,707.46
  5. Step 5: Solve for x
    x = 61,073,211,707.46/283,454.90
  6. Step 6: Final answer
    x = 215,460.07

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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.