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Finding the Fourth Proportional to 286,526.25, 429,789.38 and 89,534.25

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Solution

The fourth proportional to 286,526.25, 429,789.38 and 89,534.25 is: 134,301.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,526.25 : 429,789.38 = 89,534.25 : x
  2. Step 2: Convert to fraction form
    286,526.25/429,789.38 = 89,534.25/x
  3. Step 3: Cross multiply
    286,526.25x = 429,789.38 × 89,534.25
  4. Step 4: Simplify right side
    286,526.25x = 38,480,869,348.59
  5. Step 5: Solve for x
    x = 38,480,869,348.59/286,526.25
  6. Step 6: Final answer
    x = 134,301.38

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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.