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Finding the Fourth Proportional to 276,425.66, 381,466.61 and 155,566.94

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Solution

The fourth proportional to 276,425.66, 381,466.61 and 155,566.94 is: 214,681.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,425.66 : 381,466.61 = 155,566.94 : x
  2. Step 2: Convert to fraction form
    276,425.66/381,466.61 = 155,566.94/x
  3. Step 3: Cross multiply
    276,425.66x = 381,466.61 × 155,566.94
  4. Step 4: Simplify right side
    276,425.66x = 59,343,591,711.46
  5. Step 5: Solve for x
    x = 59,343,591,711.46/276,425.66
  6. Step 6: Final answer
    x = 214,681.92

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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.