Home / 253,618.86-349,989.75-140,439.18

Finding the Fourth Proportional to 253,618.86, 349,989.75 and 140,439.18

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Solution

The fourth proportional to 253,618.86, 349,989.75 and 140,439.18 is: 193,803.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,618.86 : 349,989.75 = 140,439.18 : x
  2. Step 2: Convert to fraction form
    253,618.86/349,989.75 = 140,439.18/x
  3. Step 3: Cross multiply
    253,618.86x = 349,989.75 × 140,439.18
  4. Step 4: Simplify right side
    253,618.86x = 49,152,273,498.41
  5. Step 5: Solve for x
    x = 49,152,273,498.41/253,618.86
  6. Step 6: Final answer
    x = 193,803.70

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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.