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Finding the Fourth Proportional to 302,468.30, 453,702.45 and 212,266.70

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Solution

The fourth proportional to 302,468.30, 453,702.45 and 212,266.70 is: 318,400.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,468.30 : 453,702.45 = 212,266.70 : x
  2. Step 2: Convert to fraction form
    302,468.30/453,702.45 = 212,266.70/x
  3. Step 3: Cross multiply
    302,468.30x = 453,702.45 × 212,266.70
  4. Step 4: Simplify right side
    302,468.30x = 96,305,921,843.42
  5. Step 5: Solve for x
    x = 96,305,921,843.42/302,468.30
  6. Step 6: Final answer
    x = 318,400.05

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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.