Home / 347,708.40-521,908.20-170,415.60

Finding the Fourth Proportional to 347,708.40, 521,908.20 and 170,415.60

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Solution

The fourth proportional to 347,708.40, 521,908.20 and 170,415.60 is: 255,792.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,708.40 : 521,908.20 = 170,415.60 : x
  2. Step 2: Convert to fraction form
    347,708.40/521,908.20 = 170,415.60/x
  3. Step 3: Cross multiply
    347,708.40x = 521,908.20 × 170,415.60
  4. Step 4: Simplify right side
    347,708.40x = 88,941,299,047.92
  5. Step 5: Solve for x
    x = 88,941,299,047.92/347,708.40
  6. Step 6: Final answer
    x = 255,792.78

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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.