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Finding the Fourth Proportional to 398,868.62, 596,898.68 and 249,179.40

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Solution

The fourth proportional to 398,868.62, 596,898.68 and 249,179.40 is: 372,891.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,868.62 : 596,898.68 = 249,179.40 : x
  2. Step 2: Convert to fraction form
    398,868.62/596,898.68 = 249,179.40/x
  3. Step 3: Cross multiply
    398,868.62x = 596,898.68 × 249,179.40
  4. Step 4: Simplify right side
    398,868.62x = 148,734,853,697.30
  5. Step 5: Solve for x
    x = 148,734,853,697.30/398,868.62
  6. Step 6: Final answer
    x = 372,891.84

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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.