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Finding the Fourth Proportional to 297,878.60, 446,817.90 and 268,387.40

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Solution

The fourth proportional to 297,878.60, 446,817.90 and 268,387.40 is: 402,581.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,878.60 : 446,817.90 = 268,387.40 : x
  2. Step 2: Convert to fraction form
    297,878.60/446,817.90 = 268,387.40/x
  3. Step 3: Cross multiply
    297,878.60x = 446,817.90 × 268,387.40
  4. Step 4: Simplify right side
    297,878.60x = 119,920,294,454.46
  5. Step 5: Solve for x
    x = 119,920,294,454.46/297,878.60
  6. Step 6: Final answer
    x = 402,581.10

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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.