Home / 317,878.20-438,564.92-180,038.32

Finding the Fourth Proportional to 317,878.20, 438,564.92 and 180,038.32

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Solution

The fourth proportional to 317,878.20, 438,564.92 and 180,038.32 is: 248,392.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,878.20 : 438,564.92 = 180,038.32 : x
  2. Step 2: Convert to fraction form
    317,878.20/438,564.92 = 180,038.32/x
  3. Step 3: Cross multiply
    317,878.20x = 438,564.92 × 180,038.32
  4. Step 4: Simplify right side
    317,878.20x = 78,958,491,407.73
  5. Step 5: Solve for x
    x = 78,958,491,407.73/317,878.20
  6. Step 6: Final answer
    x = 248,392.28

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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.