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Finding the Fourth Proportional to 390,232.80, 584,668.80 and 179,438.40

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Solution

The fourth proportional to 390,232.80, 584,668.80 and 179,438.40 is: 268,844.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    390,232.80 : 584,668.80 = 179,438.40 : x
  2. Step 2: Convert to fraction form
    390,232.80/584,668.80 = 179,438.40/x
  3. Step 3: Cross multiply
    390,232.80x = 584,668.80 × 179,438.40
  4. Step 4: Simplify right side
    390,232.80x = 104,912,034,001.92
  5. Step 5: Solve for x
    x = 104,912,034,001.92/390,232.80
  6. Step 6: Final answer
    x = 268,844.74

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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.