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Finding the Fourth Proportional to 279,164.13, 418,412.67 and 101,574.46

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Solution

The fourth proportional to 279,164.13, 418,412.67 and 101,574.46 is: 152,240.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,164.13 : 418,412.67 = 101,574.46 : x
  2. Step 2: Convert to fraction form
    279,164.13/418,412.67 = 101,574.46/x
  3. Step 3: Cross multiply
    279,164.13x = 418,412.67 × 101,574.46
  4. Step 4: Simplify right side
    279,164.13x = 42,500,041,012.41
  5. Step 5: Solve for x
    x = 42,500,041,012.41/279,164.13
  6. Step 6: Final answer
    x = 152,240.34

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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.