Home / 273,968.20-411,017.10-86,979.70

Finding the Fourth Proportional to 273,968.20, 411,017.10 and 86,979.70

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Solution

The fourth proportional to 273,968.20, 411,017.10 and 86,979.70 is: 130,490.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,968.20 : 411,017.10 = 86,979.70 : x
  2. Step 2: Convert to fraction form
    273,968.20/411,017.10 = 86,979.70/x
  3. Step 3: Cross multiply
    273,968.20x = 411,017.10 × 86,979.70
  4. Step 4: Simplify right side
    273,968.20x = 35,750,144,052.87
  5. Step 5: Solve for x
    x = 35,750,144,052.87/273,968.20
  6. Step 6: Final answer
    x = 130,490.12

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1.5x scale

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.