Home / 347,748.80-521,234.40-148,035.20

Finding the Fourth Proportional to 347,748.80, 521,234.40 and 148,035.20

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Solution

The fourth proportional to 347,748.80, 521,234.40 and 148,035.20 is: 221,887.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,748.80 : 521,234.40 = 148,035.20 : x
  2. Step 2: Convert to fraction form
    347,748.80/521,234.40 = 148,035.20/x
  3. Step 3: Cross multiply
    347,748.80x = 521,234.40 × 148,035.20
  4. Step 4: Simplify right side
    347,748.80x = 77,161,038,650.88
  5. Step 5: Solve for x
    x = 77,161,038,650.88/347,748.80
  6. Step 6: Final answer
    x = 221,887.29

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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.