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Finding the Fourth Proportional to 447,854.68, 618,056.95 and 254,280.40

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Solution

The fourth proportional to 447,854.68, 618,056.95 and 254,280.40 is: 350,916.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,854.68 : 618,056.95 = 254,280.40 : x
  2. Step 2: Convert to fraction form
    447,854.68/618,056.95 = 254,280.40/x
  3. Step 3: Cross multiply
    447,854.68x = 618,056.95 × 254,280.40
  4. Step 4: Simplify right side
    447,854.68x = 157,159,764,388.25
  5. Step 5: Solve for x
    x = 157,159,764,388.25/447,854.68
  6. Step 6: Final answer
    x = 350,916.88

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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.