Home / 256,030.42-353,314.64-142,850.74

Finding the Fourth Proportional to 256,030.42, 353,314.64 and 142,850.74

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Solution

The fourth proportional to 256,030.42, 353,314.64 and 142,850.74 is: 197,129.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,030.42 : 353,314.64 = 142,850.74 : x
  2. Step 2: Convert to fraction form
    256,030.42/353,314.64 = 142,850.74/x
  3. Step 3: Cross multiply
    256,030.42x = 353,314.64 × 142,850.74
  4. Step 4: Simplify right side
    256,030.42x = 50,471,257,776.83
  5. Step 5: Solve for x
    x = 50,471,257,776.83/256,030.42
  6. Step 6: Final answer
    x = 197,129.93

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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.