Home / 240,454.17-361,335.53-128,213.69

Finding the Fourth Proportional to 240,454.17, 361,335.53 and 128,213.69

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Solution

The fourth proportional to 240,454.17, 361,335.53 and 128,213.69 is: 192,669.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,454.17 : 361,335.53 = 128,213.69 : x
  2. Step 2: Convert to fraction form
    240,454.17/361,335.53 = 128,213.69/x
  3. Step 3: Cross multiply
    240,454.17x = 361,335.53 × 128,213.69
  4. Step 4: Simplify right side
    240,454.17x = 46,328,160,143.26
  5. Step 5: Solve for x
    x = 46,328,160,143.26/240,454.17
  6. Step 6: Final answer
    x = 192,669.40

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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.