Home / 257,612.28-355,470.06-148,720.44

Finding the Fourth Proportional to 257,612.28, 355,470.06 and 148,720.44

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Solution

The fourth proportional to 257,612.28, 355,470.06 and 148,720.44 is: 205,214.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,612.28 : 355,470.06 = 148,720.44 : x
  2. Step 2: Convert to fraction form
    257,612.28/355,470.06 = 148,720.44/x
  3. Step 3: Cross multiply
    257,612.28x = 355,470.06 × 148,720.44
  4. Step 4: Simplify right side
    257,612.28x = 52,865,663,730.03
  5. Step 5: Solve for x
    x = 52,865,663,730.03/257,612.28
  6. Step 6: Final answer
    x = 205,214.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.