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Finding the Fourth Proportional to 260,437.96, 392,608.98 and 243,077.91

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Solution

The fourth proportional to 260,437.96, 392,608.98 and 243,077.91 is: 366,438.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,437.96 : 392,608.98 = 243,077.91 : x
  2. Step 2: Convert to fraction form
    260,437.96/392,608.98 = 243,077.91/x
  3. Step 3: Cross multiply
    260,437.96x = 392,608.98 × 243,077.91
  4. Step 4: Simplify right side
    260,437.96x = 95,434,570,305.63
  5. Step 5: Solve for x
    x = 95,434,570,305.63/260,437.96
  6. Step 6: Final answer
    x = 366,438.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.