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Finding the Fourth Proportional to 294,462.64, 441,459.96 and 128,134

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Solution

The fourth proportional to 294,462.64, 441,459.96 and 128,134 is: 192,099.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    294,462.64 : 441,459.96 = 128,134 : x
  2. Step 2: Convert to fraction form
    294,462.64/441,459.96 = 128,134/x
  3. Step 3: Cross multiply
    294,462.64x = 441,459.96 × 128,134
  4. Step 4: Simplify right side
    294,462.64x = 56,566,030,514.64
  5. Step 5: Solve for x
    x = 56,566,030,514.64/294,462.64
  6. Step 6: Final answer
    x = 192,099.18

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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.