Home / 347,718.30-521,188.65-148,004.70

Finding the Fourth Proportional to 347,718.30, 521,188.65 and 148,004.70

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Solution

The fourth proportional to 347,718.30, 521,188.65 and 148,004.70 is: 221,841.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,718.30 : 521,188.65 = 148,004.70 : x
  2. Step 2: Convert to fraction form
    347,718.30/521,188.65 = 148,004.70/x
  3. Step 3: Cross multiply
    347,718.30x = 521,188.65 × 148,004.70
  4. Step 4: Simplify right side
    347,718.30x = 77,138,369,786.66
  5. Step 5: Solve for x
    x = 77,138,369,786.66/347,718.30
  6. Step 6: Final answer
    x = 221,841.56

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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.