Home / 209,275.92-288,943.32-140,468.58

Finding the Fourth Proportional to 209,275.92, 288,943.32 and 140,468.58

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Solution

The fourth proportional to 209,275.92, 288,943.32 and 140,468.58 is: 193,942.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,275.92 : 288,943.32 = 140,468.58 : x
  2. Step 2: Convert to fraction form
    209,275.92/288,943.32 = 140,468.58/x
  3. Step 3: Cross multiply
    209,275.92x = 288,943.32 × 140,468.58
  4. Step 4: Simplify right side
    209,275.92x = 40,587,457,860.89
  5. Step 5: Solve for x
    x = 40,587,457,860.89/209,275.92
  6. Step 6: Final answer
    x = 193,942.32

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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.