Home / 347,820.80-521,731.20-170,236.40

Finding the Fourth Proportional to 347,820.80, 521,731.20 and 170,236.40

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Solution

The fourth proportional to 347,820.80, 521,731.20 and 170,236.40 is: 255,354.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,820.80 : 521,731.20 = 170,236.40 : x
  2. Step 2: Convert to fraction form
    347,820.80/521,731.20 = 170,236.40/x
  3. Step 3: Cross multiply
    347,820.80x = 521,731.20 × 170,236.40
  4. Step 4: Simplify right side
    347,820.80x = 88,817,641,255.68
  5. Step 5: Solve for x
    x = 88,817,641,255.68/347,820.80
  6. Step 6: Final answer
    x = 255,354.60

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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.