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Finding the Fourth Proportional to 280,693.52, 421,137.48 and 175,387.04

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Solution

The fourth proportional to 280,693.52, 421,137.48 and 175,387.04 is: 263,141.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,693.52 : 421,137.48 = 175,387.04 : x
  2. Step 2: Convert to fraction form
    280,693.52/421,137.48 = 175,387.04/x
  3. Step 3: Cross multiply
    280,693.52x = 421,137.48 × 175,387.04
  4. Step 4: Simplify right side
    280,693.52x = 73,862,056,050.26
  5. Step 5: Solve for x
    x = 73,862,056,050.26/280,693.52
  6. Step 6: Final answer
    x = 263,141.29

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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.