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Finding the Fourth Proportional to 150,355.30, 207,490.30 and 82,374.68

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Solution

The fourth proportional to 150,355.30, 207,490.30 and 82,374.68 is: 113,677.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,355.30 : 207,490.30 = 82,374.68 : x
  2. Step 2: Convert to fraction form
    150,355.30/207,490.30 = 82,374.68/x
  3. Step 3: Cross multiply
    150,355.30x = 207,490.30 × 82,374.68
  4. Step 4: Simplify right side
    150,355.30x = 17,091,947,554.34
  5. Step 5: Solve for x
    x = 17,091,947,554.34/150,355.30
  6. Step 6: Final answer
    x = 113,677.05

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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.