Home / 347,421.06-521,380.80-147,881.61

Finding the Fourth Proportional to 347,421.06, 521,380.80 and 147,881.61

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Solution

The fourth proportional to 347,421.06, 521,380.80 and 147,881.61 is: 221,928.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,421.06 : 521,380.80 = 147,881.61 : x
  2. Step 2: Convert to fraction form
    347,421.06/521,380.80 = 147,881.61/x
  3. Step 3: Cross multiply
    347,421.06x = 521,380.80 × 147,881.61
  4. Step 4: Simplify right side
    347,421.06x = 77,102,632,127.09
  5. Step 5: Solve for x
    x = 77,102,632,127.09/347,421.06
  6. Step 6: Final answer
    x = 221,928.49

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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.