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Finding the Fourth Proportional to 185,810.55, 256,524.98 and 122,332.88

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Solution

The fourth proportional to 185,810.55, 256,524.98 and 122,332.88 is: 168,889.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,810.55 : 256,524.98 = 122,332.88 : x
  2. Step 2: Convert to fraction form
    185,810.55/256,524.98 = 122,332.88/x
  3. Step 3: Cross multiply
    185,810.55x = 256,524.98 × 122,332.88
  4. Step 4: Simplify right side
    185,810.55x = 31,381,437,701.05
  5. Step 5: Solve for x
    x = 31,381,437,701.05/185,810.55
  6. Step 6: Final answer
    x = 168,889.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.