Home / 256,438.20-353,760.30-180,820.92

Finding the Fourth Proportional to 256,438.20, 353,760.30 and 180,820.92

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Solution

The fourth proportional to 256,438.20, 353,760.30 and 180,820.92 is: 249,445.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,438.20 : 353,760.30 = 180,820.92 : x
  2. Step 2: Convert to fraction form
    256,438.20/353,760.30 = 180,820.92/x
  3. Step 3: Cross multiply
    256,438.20x = 353,760.30 × 180,820.92
  4. Step 4: Simplify right side
    256,438.20x = 63,967,262,905.48
  5. Step 5: Solve for x
    x = 63,967,262,905.48/256,438.20
  6. Step 6: Final answer
    x = 249,445.14

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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.