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Finding the Fourth Proportional to 376,419.29, 564,130.55 and 276,109.80

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Solution

The fourth proportional to 376,419.29, 564,130.55 and 276,109.80 is: 413,799.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,419.29 : 564,130.55 = 276,109.80 : x
  2. Step 2: Convert to fraction form
    376,419.29/564,130.55 = 276,109.80/x
  3. Step 3: Cross multiply
    376,419.29x = 564,130.55 × 276,109.80
  4. Step 4: Simplify right side
    376,419.29x = 155,761,971,953.84
  5. Step 5: Solve for x
    x = 155,761,971,953.84/376,419.29
  6. Step 6: Final answer
    x = 413,799.13

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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.