Home / 256,041.46-353,336.95-142,864.21

Finding the Fourth Proportional to 256,041.46, 353,336.95 and 142,864.21

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Solution

The fourth proportional to 256,041.46, 353,336.95 and 142,864.21 is: 197,152.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,041.46 : 353,336.95 = 142,864.21 : x
  2. Step 2: Convert to fraction form
    256,041.46/353,336.95 = 142,864.21/x
  3. Step 3: Cross multiply
    256,041.46x = 353,336.95 × 142,864.21
  4. Step 4: Simplify right side
    256,041.46x = 50,479,204,225.56
  5. Step 5: Solve for x
    x = 50,479,204,225.56/256,041.46
  6. Step 6: Final answer
    x = 197,152.46

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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.