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Finding the Fourth Proportional to 245,366.10, 368,049.15 and 79,154.10

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Solution

The fourth proportional to 245,366.10, 368,049.15 and 79,154.10 is: 118,731.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,366.10 : 368,049.15 = 79,154.10 : x
  2. Step 2: Convert to fraction form
    245,366.10/368,049.15 = 79,154.10/x
  3. Step 3: Cross multiply
    245,366.10x = 368,049.15 × 79,154.10
  4. Step 4: Simplify right side
    245,366.10x = 29,132,599,224.02
  5. Step 5: Solve for x
    x = 29,132,599,224.02/245,366.10
  6. Step 6: Final answer
    x = 118,731.15

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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.