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Finding the Fourth Proportional to 245,617.02, 368,438.49 and 79,417.98

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Solution

The fourth proportional to 245,617.02, 368,438.49 and 79,417.98 is: 119,131.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,617.02 : 368,438.49 = 79,417.98 : x
  2. Step 2: Convert to fraction form
    245,617.02/368,438.49 = 79,417.98/x
  3. Step 3: Cross multiply
    245,617.02x = 368,438.49 × 79,417.98
  4. Step 4: Simplify right side
    245,617.02x = 29,260,640,630.05
  5. Step 5: Solve for x
    x = 29,260,640,630.05/245,617.02
  6. Step 6: Final answer
    x = 119,131.16

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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.