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Finding the Fourth Proportional to 276,124.34, 381,043.98 and 155,262.52

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Solution

The fourth proportional to 276,124.34, 381,043.98 and 155,262.52 is: 214,258.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,124.34 : 381,043.98 = 155,262.52 : x
  2. Step 2: Convert to fraction form
    276,124.34/381,043.98 = 155,262.52/x
  3. Step 3: Cross multiply
    276,124.34x = 381,043.98 × 155,262.52
  4. Step 4: Simplify right side
    276,124.34x = 59,161,849,041.93
  5. Step 5: Solve for x
    x = 59,161,849,041.93/276,124.34
  6. Step 6: Final answer
    x = 214,258.00

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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.