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Finding the Fourth Proportional to 300,565.90, 414,680.25 and 173,238.76

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Solution

The fourth proportional to 300,565.90, 414,680.25 and 173,238.76 is: 239,011.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,565.90 : 414,680.25 = 173,238.76 : x
  2. Step 2: Convert to fraction form
    300,565.90/414,680.25 = 173,238.76/x
  3. Step 3: Cross multiply
    300,565.90x = 414,680.25 × 173,238.76
  4. Step 4: Simplify right side
    300,565.90x = 71,838,692,306.49
  5. Step 5: Solve for x
    x = 71,838,692,306.49/300,565.90
  6. Step 6: Final answer
    x = 239,011.45

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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.