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Finding the Fourth Proportional to 502,505.40, 753,758.10 and 170,081.40

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Solution

The fourth proportional to 502,505.40, 753,758.10 and 170,081.40 is: 255,122.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    502,505.40 : 753,758.10 = 170,081.40 : x
  2. Step 2: Convert to fraction form
    502,505.40/753,758.10 = 170,081.40/x
  3. Step 3: Cross multiply
    502,505.40x = 753,758.10 × 170,081.40
  4. Step 4: Simplify right side
    502,505.40x = 128,200,232,909.34
  5. Step 5: Solve for x
    x = 128,200,232,909.34/502,505.40
  6. Step 6: Final answer
    x = 255,122.10

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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.