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Finding the Fourth Proportional to 614,660.81, 921,671.33 and 235,467.81

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Solution

The fourth proportional to 614,660.81, 921,671.33 and 235,467.81 is: 353,079.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    614,660.81 : 921,671.33 = 235,467.81 : x
  2. Step 2: Convert to fraction form
    614,660.81/921,671.33 = 235,467.81/x
  3. Step 3: Cross multiply
    614,660.81x = 921,671.33 × 235,467.81
  4. Step 4: Simplify right side
    614,660.81x = 217,023,928,437.55
  5. Step 5: Solve for x
    x = 217,023,928,437.55/614,660.81
  6. Step 6: Final answer
    x = 353,079.17

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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.