Home / 256,895.42-354,510-140,608.31

Finding the Fourth Proportional to 256,895.42, 354,510 and 140,608.31

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Solution

The fourth proportional to 256,895.42, 354,510 and 140,608.31 is: 194,036.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,895.42 : 354,510 = 140,608.31 : x
  2. Step 2: Convert to fraction form
    256,895.42/354,510 = 140,608.31/x
  3. Step 3: Cross multiply
    256,895.42x = 354,510 × 140,608.31
  4. Step 4: Simplify right side
    256,895.42x = 49,847,050,205.55
  5. Step 5: Solve for x
    x = 49,847,050,205.55/256,895.42
  6. Step 6: Final answer
    x = 194,036.36

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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.