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Finding the Fourth Proportional to 273,946, 410,919.15 and 86,957.50

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Solution

The fourth proportional to 273,946, 410,919.15 and 86,957.50 is: 130,436.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,946 : 410,919.15 = 86,957.50 : x
  2. Step 2: Convert to fraction form
    273,946/410,919.15 = 86,957.50/x
  3. Step 3: Cross multiply
    273,946x = 410,919.15 × 86,957.50
  4. Step 4: Simplify right side
    273,946x = 35,732,501,986.13
  5. Step 5: Solve for x
    x = 35,732,501,986.13/273,946
  6. Step 6: Final answer
    x = 130,436.30

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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.