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Finding the Fourth Proportional to 276,005.80, 413,717.10 and 157,421.80

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Solution

The fourth proportional to 276,005.80, 413,717.10 and 157,421.80 is: 235,966.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,005.80 : 413,717.10 = 157,421.80 : x
  2. Step 2: Convert to fraction form
    276,005.80/413,717.10 = 157,421.80/x
  3. Step 3: Cross multiply
    276,005.80x = 413,717.10 × 157,421.80
  4. Step 4: Simplify right side
    276,005.80x = 65,128,090,572.78
  5. Step 5: Solve for x
    x = 65,128,090,572.78/276,005.80
  6. Step 6: Final answer
    x = 235,966.38

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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.