Home / 287,641.22-396,687.08-180,223.06

Finding the Fourth Proportional to 287,641.22, 396,687.08 and 180,223.06

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Solution

The fourth proportional to 287,641.22, 396,687.08 and 180,223.06 is: 248,546.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,641.22 : 396,687.08 = 180,223.06 : x
  2. Step 2: Convert to fraction form
    287,641.22/396,687.08 = 180,223.06/x
  3. Step 3: Cross multiply
    287,641.22x = 396,687.08 × 180,223.06
  4. Step 4: Simplify right side
    287,641.22x = 71,492,159,420.06
  5. Step 5: Solve for x
    x = 71,492,159,420.06/287,641.22
  6. Step 6: Final answer
    x = 248,546.29

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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.