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Finding the Fourth Proportional to 253,340.76, 349,658.40 and 180,939.72

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Solution

The fourth proportional to 253,340.76, 349,658.40 and 180,939.72 is: 249,731.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,340.76 : 349,658.40 = 180,939.72 : x
  2. Step 2: Convert to fraction form
    253,340.76/349,658.40 = 180,939.72/x
  3. Step 3: Cross multiply
    253,340.76x = 349,658.40 × 180,939.72
  4. Step 4: Simplify right side
    253,340.76x = 63,267,092,991.65
  5. Step 5: Solve for x
    x = 63,267,092,991.65/253,340.76
  6. Step 6: Final answer
    x = 249,731.20

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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.