Home / 256,920.08-354,550.02-143,742.92

Finding the Fourth Proportional to 256,920.08, 354,550.02 and 143,742.92

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Solution

The fourth proportional to 256,920.08, 354,550.02 and 143,742.92 is: 198,365.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,920.08 : 354,550.02 = 143,742.92 : x
  2. Step 2: Convert to fraction form
    256,920.08/354,550.02 = 143,742.92/x
  3. Step 3: Cross multiply
    256,920.08x = 354,550.02 × 143,742.92
  4. Step 4: Simplify right side
    256,920.08x = 50,964,055,160.86
  5. Step 5: Solve for x
    x = 50,964,055,160.86/256,920.08
  6. Step 6: Final answer
    x = 198,365.40

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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.