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Finding the Fourth Proportional to 245,569.80, 368,354.70 and 216,045.30

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Solution

The fourth proportional to 245,569.80, 368,354.70 and 216,045.30 is: 324,067.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,569.80 : 368,354.70 = 216,045.30 : x
  2. Step 2: Convert to fraction form
    245,569.80/368,354.70 = 216,045.30/x
  3. Step 3: Cross multiply
    245,569.80x = 368,354.70 × 216,045.30
  4. Step 4: Simplify right side
    245,569.80x = 79,581,301,667.91
  5. Step 5: Solve for x
    x = 79,581,301,667.91/245,569.80
  6. Step 6: Final answer
    x = 324,067.95

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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.