Home / 269,129.20-403,207.80-156,717.40

Finding the Fourth Proportional to 269,129.20, 403,207.80 and 156,717.40

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Solution

The fourth proportional to 269,129.20, 403,207.80 and 156,717.40 is: 234,793.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,129.20 : 403,207.80 = 156,717.40 : x
  2. Step 2: Convert to fraction form
    269,129.20/403,207.80 = 156,717.40/x
  3. Step 3: Cross multiply
    269,129.20x = 403,207.80 × 156,717.40
  4. Step 4: Simplify right side
    269,129.20x = 63,189,678,075.72
  5. Step 5: Solve for x
    x = 63,189,678,075.72/269,129.20
  6. Step 6: Final answer
    x = 234,793.10

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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.