Home / 261,962.40-392,943.60-156,727.20

Finding the Fourth Proportional to 261,962.40, 392,943.60 and 156,727.20

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Solution

The fourth proportional to 261,962.40, 392,943.60 and 156,727.20 is: 235,090.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,962.40 : 392,943.60 = 156,727.20 : x
  2. Step 2: Convert to fraction form
    261,962.40/392,943.60 = 156,727.20/x
  3. Step 3: Cross multiply
    261,962.40x = 392,943.60 × 156,727.20
  4. Step 4: Simplify right side
    261,962.40x = 61,584,950,185.92
  5. Step 5: Solve for x
    x = 61,584,950,185.92/261,962.40
  6. Step 6: Final answer
    x = 235,090.80

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1.5x scale

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.