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Finding the Fourth Proportional to 276,209.70, 413,330.40 and 191,572.80

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Solution

The fourth proportional to 276,209.70, 413,330.40 and 191,572.80 is: 286,676.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,209.70 : 413,330.40 = 191,572.80 : x
  2. Step 2: Convert to fraction form
    276,209.70/413,330.40 = 191,572.80/x
  3. Step 3: Cross multiply
    276,209.70x = 413,330.40 × 191,572.80
  4. Step 4: Simplify right side
    276,209.70x = 79,182,862,053.12
  5. Step 5: Solve for x
    x = 79,182,862,053.12/276,209.70
  6. Step 6: Final answer
    x = 286,676.62

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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.