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Finding the Fourth Proportional to 310,902.30, 429,045.15 and 176,766.30

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Solution

The fourth proportional to 310,902.30, 429,045.15 and 176,766.30 is: 243,937.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,902.30 : 429,045.15 = 176,766.30 : x
  2. Step 2: Convert to fraction form
    310,902.30/429,045.15 = 176,766.30/x
  3. Step 3: Cross multiply
    310,902.30x = 429,045.15 × 176,766.30
  4. Step 4: Simplify right side
    310,902.30x = 75,840,723,698.45
  5. Step 5: Solve for x
    x = 75,840,723,698.45/310,902.30
  6. Step 6: Final answer
    x = 243,937.48

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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.