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Finding the Fourth Proportional to 335,029.80, 502,544.70 and 318,700.20

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Solution

The fourth proportional to 335,029.80, 502,544.70 and 318,700.20 is: 478,050.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    335,029.80 : 502,544.70 = 318,700.20 : x
  2. Step 2: Convert to fraction form
    335,029.80/502,544.70 = 318,700.20/x
  3. Step 3: Cross multiply
    335,029.80x = 502,544.70 × 318,700.20
  4. Step 4: Simplify right side
    335,029.80x = 160,161,096,398.94
  5. Step 5: Solve for x
    x = 160,161,096,398.94/335,029.80
  6. Step 6: Final answer
    x = 478,050.30

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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.