Home / 426,179.20-639,038.40-176,886.40

Finding the Fourth Proportional to 426,179.20, 639,038.40 and 176,886.40

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Solution

The fourth proportional to 426,179.20, 639,038.40 and 176,886.40 is: 265,233.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,179.20 : 639,038.40 = 176,886.40 : x
  2. Step 2: Convert to fraction form
    426,179.20/639,038.40 = 176,886.40/x
  3. Step 3: Cross multiply
    426,179.20x = 639,038.40 × 176,886.40
  4. Step 4: Simplify right side
    426,179.20x = 113,037,202,037.76
  5. Step 5: Solve for x
    x = 113,037,202,037.76/426,179.20
  6. Step 6: Final answer
    x = 265,233.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.