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Finding the Fourth Proportional to 376,901.40, 565,352.10 and 219,307.80

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Solution

The fourth proportional to 376,901.40, 565,352.10 and 219,307.80 is: 328,961.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,901.40 : 565,352.10 = 219,307.80 : x
  2. Step 2: Convert to fraction form
    376,901.40/565,352.10 = 219,307.80/x
  3. Step 3: Cross multiply
    376,901.40x = 565,352.10 × 219,307.80
  4. Step 4: Simplify right side
    376,901.40x = 123,986,125,276.38
  5. Step 5: Solve for x
    x = 123,986,125,276.38/376,901.40
  6. Step 6: Final answer
    x = 328,961.70

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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.