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Finding the Fourth Proportional to 660,368.52, 990,555.20 and 161,732.52

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Solution

The fourth proportional to 660,368.52, 990,555.20 and 161,732.52 is: 242,599.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,368.52 : 990,555.20 = 161,732.52 : x
  2. Step 2: Convert to fraction form
    660,368.52/990,555.20 = 161,732.52/x
  3. Step 3: Cross multiply
    660,368.52x = 990,555.20 × 161,732.52
  4. Step 4: Simplify right side
    660,368.52x = 160,204,988,695.10
  5. Step 5: Solve for x
    x = 160,204,988,695.10/660,368.52
  6. Step 6: Final answer
    x = 242,599.37

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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.