Home / 287,647.24-396,953.63-160,320.10

Finding the Fourth Proportional to 287,647.24, 396,953.63 and 160,320.10

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Solution

The fourth proportional to 287,647.24, 396,953.63 and 160,320.10 is: 221,241.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,647.24 : 396,953.63 = 160,320.10 : x
  2. Step 2: Convert to fraction form
    287,647.24/396,953.63 = 160,320.10/x
  3. Step 3: Cross multiply
    287,647.24x = 396,953.63 × 160,320.10
  4. Step 4: Simplify right side
    287,647.24x = 63,639,644,759.97
  5. Step 5: Solve for x
    x = 63,639,644,759.97/287,647.24
  6. Step 6: Final answer
    x = 221,241.98

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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.