Home / 287,339.40-396,532.26-160,018.20

Finding the Fourth Proportional to 287,339.40, 396,532.26 and 160,018.20

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Solution

The fourth proportional to 287,339.40, 396,532.26 and 160,018.20 is: 220,827.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,339.40 : 396,532.26 = 160,018.20 : x
  2. Step 2: Convert to fraction form
    287,339.40/396,532.26 = 160,018.20/x
  3. Step 3: Cross multiply
    287,339.40x = 396,532.26 × 160,018.20
  4. Step 4: Simplify right side
    287,339.40x = 63,452,378,487.13
  5. Step 5: Solve for x
    x = 63,452,378,487.13/287,339.40
  6. Step 6: Final answer
    x = 220,827.28

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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.