Home / 668,155.50-1,002,213.81-247,422.06

Finding the Fourth Proportional to 668,155.50, 1,002,213.81 and 247,422.06

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Solution

The fourth proportional to 668,155.50, 1,002,213.81 and 247,422.06 is: 371,125.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,155.50 : 1,002,213.81 = 247,422.06 : x
  2. Step 2: Convert to fraction form
    668,155.50/1,002,213.81 = 247,422.06/x
  3. Step 3: Cross multiply
    668,155.50x = 1,002,213.81 × 247,422.06
  4. Step 4: Simplify right side
    668,155.50x = 247,969,805,430.65
  5. Step 5: Solve for x
    x = 247,969,805,430.65/668,155.50
  6. Step 6: Final answer
    x = 371,125.89

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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.