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Finding the Fourth Proportional to 373,298.80, 559,948.20 and 136,665.40

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Solution

The fourth proportional to 373,298.80, 559,948.20 and 136,665.40 is: 204,998.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,298.80 : 559,948.20 = 136,665.40 : x
  2. Step 2: Convert to fraction form
    373,298.80/559,948.20 = 136,665.40/x
  3. Step 3: Cross multiply
    373,298.80x = 559,948.20 × 136,665.40
  4. Step 4: Simplify right side
    373,298.80x = 76,525,544,732.28
  5. Step 5: Solve for x
    x = 76,525,544,732.28/373,298.80
  6. Step 6: Final answer
    x = 204,998.10

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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.