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Finding the Fourth Proportional to 292,453.64, 438,680.40 and 159,445.76

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Solution

The fourth proportional to 292,453.64, 438,680.40 and 159,445.76 is: 239,168.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,453.64 : 438,680.40 = 159,445.76 : x
  2. Step 2: Convert to fraction form
    292,453.64/438,680.40 = 159,445.76/x
  3. Step 3: Cross multiply
    292,453.64x = 438,680.40 × 159,445.76
  4. Step 4: Simplify right side
    292,453.64x = 69,945,729,775.10
  5. Step 5: Solve for x
    x = 69,945,729,775.10/292,453.64
  6. Step 6: Final answer
    x = 239,168.61

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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.