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Finding the Fourth Proportional to 282,438.79, 423,657.95 and 72,076.73

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Solution

The fourth proportional to 282,438.79, 423,657.95 and 72,076.73 is: 108,115.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,438.79 : 423,657.95 = 72,076.73 : x
  2. Step 2: Convert to fraction form
    282,438.79/423,657.95 = 72,076.73/x
  3. Step 3: Cross multiply
    282,438.79x = 423,657.95 × 72,076.73
  4. Step 4: Simplify right side
    282,438.79x = 30,535,877,195.83
  5. Step 5: Solve for x
    x = 30,535,877,195.83/282,438.79
  6. Step 6: Final answer
    x = 108,115.03

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1.5x scale

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.