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Finding the Fourth Proportional to 341,320.80, 511,242.40 and 247,620

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Solution

The fourth proportional to 341,320.80, 511,242.40 and 247,620 is: 370,894.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,320.80 : 511,242.40 = 247,620 : x
  2. Step 2: Convert to fraction form
    341,320.80/511,242.40 = 247,620/x
  3. Step 3: Cross multiply
    341,320.80x = 511,242.40 × 247,620
  4. Step 4: Simplify right side
    341,320.80x = 126,593,843,088
  5. Step 5: Solve for x
    x = 126,593,843,088/341,320.80
  6. Step 6: Final answer
    x = 370,894.02

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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.