Home / 354,177.44-531,279.12-143,810.72

Finding the Fourth Proportional to 354,177.44, 531,279.12 and 143,810.72

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Solution

The fourth proportional to 354,177.44, 531,279.12 and 143,810.72 is: 215,721.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,177.44 : 531,279.12 = 143,810.72 : x
  2. Step 2: Convert to fraction form
    354,177.44/531,279.12 = 143,810.72/x
  3. Step 3: Cross multiply
    354,177.44x = 531,279.12 × 143,810.72
  4. Step 4: Simplify right side
    354,177.44x = 76,403,632,768.17
  5. Step 5: Solve for x
    x = 76,403,632,768.17/354,177.44
  6. Step 6: Final answer
    x = 215,721.34

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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.