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Finding the Fourth Proportional to 345,870.28, 518,649.90 and 334,983.88

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Solution

The fourth proportional to 345,870.28, 518,649.90 and 334,983.88 is: 502,325.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,870.28 : 518,649.90 = 334,983.88 : x
  2. Step 2: Convert to fraction form
    345,870.28/518,649.90 = 334,983.88/x
  3. Step 3: Cross multiply
    345,870.28x = 518,649.90 × 334,983.88
  4. Step 4: Simplify right side
    345,870.28x = 173,739,355,863.61
  5. Step 5: Solve for x
    x = 173,739,355,863.61/345,870.28
  6. Step 6: Final answer
    x = 502,325.20

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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.