Home / 487,222.17-730,825.20-145,666.40

Finding the Fourth Proportional to 487,222.17, 730,825.20 and 145,666.40

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Solution

The fourth proportional to 487,222.17, 730,825.20 and 145,666.40 is: 218,497.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,222.17 : 730,825.20 = 145,666.40 : x
  2. Step 2: Convert to fraction form
    487,222.17/730,825.20 = 145,666.40/x
  3. Step 3: Cross multiply
    487,222.17x = 730,825.20 × 145,666.40
  4. Step 4: Simplify right side
    487,222.17x = 106,456,672,259.15
  5. Step 5: Solve for x
    x = 106,456,672,259.15/487,222.17
  6. Step 6: Final answer
    x = 218,497.18

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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.