Home / 261,934.40-392,901.60-156,699.20

Finding the Fourth Proportional to 261,934.40, 392,901.60 and 156,699.20

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Solution

The fourth proportional to 261,934.40, 392,901.60 and 156,699.20 is: 235,048.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,934.40 : 392,901.60 = 156,699.20 : x
  2. Step 2: Convert to fraction form
    261,934.40/392,901.60 = 156,699.20/x
  3. Step 3: Cross multiply
    261,934.40x = 392,901.60 × 156,699.20
  4. Step 4: Simplify right side
    261,934.40x = 61,567,366,398.72
  5. Step 5: Solve for x
    x = 61,567,366,398.72/261,934.40
  6. Step 6: Final answer
    x = 235,048.80

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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.