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Finding the Fourth Proportional to 231,159.78, 346,777.61 and 71,235.74

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Solution

The fourth proportional to 231,159.78, 346,777.61 and 71,235.74 is: 106,865.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,159.78 : 346,777.61 = 71,235.74 : x
  2. Step 2: Convert to fraction form
    231,159.78/346,777.61 = 71,235.74/x
  3. Step 3: Cross multiply
    231,159.78x = 346,777.61 × 71,235.74
  4. Step 4: Simplify right side
    231,159.78x = 24,702,958,541.45
  5. Step 5: Solve for x
    x = 24,702,958,541.45/231,159.78
  6. Step 6: Final answer
    x = 106,865.30

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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.