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Finding the Fourth Proportional to 292,227.20, 438,340.80 and 243,019.70

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Solution

The fourth proportional to 292,227.20, 438,340.80 and 243,019.70 is: 364,529.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,227.20 : 438,340.80 = 243,019.70 : x
  2. Step 2: Convert to fraction form
    292,227.20/438,340.80 = 243,019.70/x
  3. Step 3: Cross multiply
    292,227.20x = 438,340.80 × 243,019.70
  4. Step 4: Simplify right side
    292,227.20x = 106,525,449,713.76
  5. Step 5: Solve for x
    x = 106,525,449,713.76/292,227.20
  6. Step 6: Final answer
    x = 364,529.55

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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.