Home / 243,612.45-336,204.63-140,278.86

Finding the Fourth Proportional to 243,612.45, 336,204.63 and 140,278.86

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Solution

The fourth proportional to 243,612.45, 336,204.63 and 140,278.86 is: 193,596.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,612.45 : 336,204.63 = 140,278.86 : x
  2. Step 2: Convert to fraction form
    243,612.45/336,204.63 = 140,278.86/x
  3. Step 3: Cross multiply
    243,612.45x = 336,204.63 × 140,278.86
  4. Step 4: Simplify right side
    243,612.45x = 47,162,402,223.12
  5. Step 5: Solve for x
    x = 47,162,402,223.12/243,612.45
  6. Step 6: Final answer
    x = 193,596.03

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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.