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Finding the Fourth Proportional to 373,659, 515,882.70 and 239,756.28

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Solution

The fourth proportional to 373,659, 515,882.70 and 239,756.28 is: 331,013.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,659 : 515,882.70 = 239,756.28 : x
  2. Step 2: Convert to fraction form
    373,659/515,882.70 = 239,756.28/x
  3. Step 3: Cross multiply
    373,659x = 515,882.70 × 239,756.28
  4. Step 4: Simplify right side
    373,659x = 123,686,117,068.36
  5. Step 5: Solve for x
    x = 123,686,117,068.36/373,659
  6. Step 6: Final answer
    x = 331,013.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.