Home / 292,147.11-438,286.32-92,479.48

Finding the Fourth Proportional to 292,147.11, 438,286.32 and 92,479.48

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Solution

The fourth proportional to 292,147.11, 438,286.32 and 92,479.48 is: 138,740.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,147.11 : 438,286.32 = 92,479.48 : x
  2. Step 2: Convert to fraction form
    292,147.11/438,286.32 = 92,479.48/x
  3. Step 3: Cross multiply
    292,147.11x = 438,286.32 × 92,479.48
  4. Step 4: Simplify right side
    292,147.11x = 40,532,490,964.71
  5. Step 5: Solve for x
    x = 40,532,490,964.71/292,147.11
  6. Step 6: Final answer
    x = 138,740.00

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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.