Home / 348,072.30-521,719.65-198,384.30

Finding the Fourth Proportional to 348,072.30, 521,719.65 and 198,384.30

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Solution

The fourth proportional to 348,072.30, 521,719.65 and 198,384.30 is: 297,354.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,072.30 : 521,719.65 = 198,384.30 : x
  2. Step 2: Convert to fraction form
    348,072.30/521,719.65 = 198,384.30/x
  3. Step 3: Cross multiply
    348,072.30x = 521,719.65 × 198,384.30
  4. Step 4: Simplify right side
    348,072.30x = 103,500,987,561.50
  5. Step 5: Solve for x
    x = 103,500,987,561.50/348,072.30
  6. Step 6: Final answer
    x = 297,354.85

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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.