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Finding the Fourth Proportional to 392,034.75, 540,924.53 and 230,830.98

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Solution

The fourth proportional to 392,034.75, 540,924.53 and 230,830.98 is: 318,497.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,034.75 : 540,924.53 = 230,830.98 : x
  2. Step 2: Convert to fraction form
    392,034.75/540,924.53 = 230,830.98/x
  3. Step 3: Cross multiply
    392,034.75x = 540,924.53 × 230,830.98
  4. Step 4: Simplify right side
    392,034.75x = 124,862,138,211.79
  5. Step 5: Solve for x
    x = 124,862,138,211.79/392,034.75
  6. Step 6: Final answer
    x = 318,497.63

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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.