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Finding the Fourth Proportional to 253,778.99, 380,253.20 and 153,635.65

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Solution

The fourth proportional to 253,778.99, 380,253.20 and 153,635.65 is: 230,202.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,778.99 : 380,253.20 = 153,635.65 : x
  2. Step 2: Convert to fraction form
    253,778.99/380,253.20 = 153,635.65/x
  3. Step 3: Cross multiply
    253,778.99x = 380,253.20 × 153,635.65
  4. Step 4: Simplify right side
    253,778.99x = 58,420,445,827.77
  5. Step 5: Solve for x
    x = 58,420,445,827.77/253,778.99
  6. Step 6: Final answer
    x = 230,202.06

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1.5x scale

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.