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Finding the Fourth Proportional to 292,449.66, 438,690.06 and 92,785.68

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Solution

The fourth proportional to 292,449.66, 438,690.06 and 92,785.68 is: 139,183.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,449.66 : 438,690.06 = 92,785.68 : x
  2. Step 2: Convert to fraction form
    292,449.66/438,690.06 = 92,785.68/x
  3. Step 3: Cross multiply
    292,449.66x = 438,690.06 × 92,785.68
  4. Step 4: Simplify right side
    292,449.66x = 40,704,155,526.34
  5. Step 5: Solve for x
    x = 40,704,155,526.34/292,449.66
  6. Step 6: Final answer
    x = 139,183.46

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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.