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Finding the Fourth Proportional to 315,167, 434,966.88 and 175,479.66

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Solution

The fourth proportional to 315,167, 434,966.88 and 175,479.66 is: 242,182.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,167 : 434,966.88 = 175,479.66 : x
  2. Step 2: Convert to fraction form
    315,167/434,966.88 = 175,479.66/x
  3. Step 3: Cross multiply
    315,167x = 434,966.88 × 175,479.66
  4. Step 4: Simplify right side
    315,167x = 76,327,840,213.66
  5. Step 5: Solve for x
    x = 76,327,840,213.66/315,167
  6. Step 6: Final answer
    x = 242,182.21

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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.