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Finding the Fourth Proportional to 538,700.40, 808,050.60 and 238,862.70

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Solution

The fourth proportional to 538,700.40, 808,050.60 and 238,862.70 is: 358,294.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,700.40 : 808,050.60 = 238,862.70 : x
  2. Step 2: Convert to fraction form
    538,700.40/808,050.60 = 238,862.70/x
  3. Step 3: Cross multiply
    538,700.40x = 808,050.60 × 238,862.70
  4. Step 4: Simplify right side
    538,700.40x = 193,013,148,052.62
  5. Step 5: Solve for x
    x = 193,013,148,052.62/538,700.40
  6. Step 6: Final answer
    x = 358,294.05

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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.