Home / 348,105.30-521,769.15-198,417.30

Finding the Fourth Proportional to 348,105.30, 521,769.15 and 198,417.30

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Solution

The fourth proportional to 348,105.30, 521,769.15 and 198,417.30 is: 297,404.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,105.30 : 521,769.15 = 198,417.30 : x
  2. Step 2: Convert to fraction form
    348,105.30/521,769.15 = 198,417.30/x
  3. Step 3: Cross multiply
    348,105.30x = 521,769.15 × 198,417.30
  4. Step 4: Simplify right side
    348,105.30x = 103,528,025,966.30
  5. Step 5: Solve for x
    x = 103,528,025,966.30/348,105.30
  6. Step 6: Final answer
    x = 297,404.34

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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.