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Finding the Fourth Proportional to 487,288.98, 730,983.61 and 183,938.64

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Solution

The fourth proportional to 487,288.98, 730,983.61 and 183,938.64 is: 275,926.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,288.98 : 730,983.61 = 183,938.64 : x
  2. Step 2: Convert to fraction form
    487,288.98/730,983.61 = 183,938.64/x
  3. Step 3: Cross multiply
    487,288.98x = 730,983.61 × 183,938.64
  4. Step 4: Simplify right side
    487,288.98x = 134,456,131,315.61
  5. Step 5: Solve for x
    x = 134,456,131,315.61/487,288.98
  6. Step 6: Final answer
    x = 275,926.89

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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.