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Finding the Fourth Proportional to 538,300.60, 807,450.89 and 159,191.79

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Solution

The fourth proportional to 538,300.60, 807,450.89 and 159,191.79 is: 238,787.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,300.60 : 807,450.89 = 159,191.79 : x
  2. Step 2: Convert to fraction form
    538,300.60/807,450.89 = 159,191.79/x
  3. Step 3: Cross multiply
    538,300.60x = 807,450.89 × 159,191.79
  4. Step 4: Simplify right side
    538,300.60x = 128,539,552,516.19
  5. Step 5: Solve for x
    x = 128,539,552,516.19/538,300.60
  6. Step 6: Final answer
    x = 238,787.68

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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.