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Finding the Fourth Proportional to 245,363.60, 368,045.40 and 79,151.60

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Solution

The fourth proportional to 245,363.60, 368,045.40 and 79,151.60 is: 118,727.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,363.60 : 368,045.40 = 79,151.60 : x
  2. Step 2: Convert to fraction form
    245,363.60/368,045.40 = 79,151.60/x
  3. Step 3: Cross multiply
    245,363.60x = 368,045.40 × 79,151.60
  4. Step 4: Simplify right side
    245,363.60x = 29,131,382,282.64
  5. Step 5: Solve for x
    x = 29,131,382,282.64/245,363.60
  6. Step 6: Final answer
    x = 118,727.40

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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.