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Finding the Fourth Proportional to 315,565.65, 435,521.75 and 179,573.13

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Solution

The fourth proportional to 315,565.65, 435,521.75 and 179,573.13 is: 247,834.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,565.65 : 435,521.75 = 179,573.13 : x
  2. Step 2: Convert to fraction form
    315,565.65/435,521.75 = 179,573.13/x
  3. Step 3: Cross multiply
    315,565.65x = 435,521.75 × 179,573.13
  4. Step 4: Simplify right side
    315,565.65x = 78,208,002,932.71
  5. Step 5: Solve for x
    x = 78,208,002,932.71/315,565.65
  6. Step 6: Final answer
    x = 247,834.33

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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.