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Finding the Fourth Proportional to 245,220, 365,684.10 and 242,977.92

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Solution

The fourth proportional to 245,220, 365,684.10 and 242,977.92 is: 362,340.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,220 : 365,684.10 = 242,977.92 : x
  2. Step 2: Convert to fraction form
    245,220/365,684.10 = 242,977.92/x
  3. Step 3: Cross multiply
    245,220x = 365,684.10 × 242,977.92
  4. Step 4: Simplify right side
    245,220x = 88,853,161,995.07
  5. Step 5: Solve for x
    x = 88,853,161,995.07/245,220
  6. Step 6: Final answer
    x = 362,340.60

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.