Home / 289,726.47-434,332.13-109,686.56

Finding the Fourth Proportional to 289,726.47, 434,332.13 and 109,686.56

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Solution

The fourth proportional to 289,726.47, 434,332.13 and 109,686.56 is: 164,432.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,726.47 : 434,332.13 = 109,686.56 : x
  2. Step 2: Convert to fraction form
    289,726.47/434,332.13 = 109,686.56/x
  3. Step 3: Cross multiply
    289,726.47x = 434,332.13 × 109,686.56
  4. Step 4: Simplify right side
    289,726.47x = 47,640,394,517.08
  5. Step 5: Solve for x
    x = 47,640,394,517.08/289,726.47
  6. Step 6: Final answer
    x = 164,432.32

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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.