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Finding the Fourth Proportional to 245,566.40, 368,296.32 and 87,805.76

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Solution

The fourth proportional to 245,566.40, 368,296.32 and 87,805.76 is: 131,689.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,566.40 : 368,296.32 = 87,805.76 : x
  2. Step 2: Convert to fraction form
    245,566.40/368,296.32 = 87,805.76/x
  3. Step 3: Cross multiply
    245,566.40x = 368,296.32 × 87,805.76
  4. Step 4: Simplify right side
    245,566.40x = 32,338,538,282.80
  5. Step 5: Solve for x
    x = 32,338,538,282.80/245,566.40
  6. Step 6: Final answer
    x = 131,689.59

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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.