Home / 287,938.12-397,363.02-160,610.96

Finding the Fourth Proportional to 287,938.12, 397,363.02 and 160,610.96

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Solution

The fourth proportional to 287,938.12, 397,363.02 and 160,610.96 is: 221,647.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,938.12 : 397,363.02 = 160,610.96 : x
  2. Step 2: Convert to fraction form
    287,938.12/397,363.02 = 160,610.96/x
  3. Step 3: Cross multiply
    287,938.12x = 397,363.02 × 160,610.96
  4. Step 4: Simplify right side
    287,938.12x = 63,820,856,110.70
  5. Step 5: Solve for x
    x = 63,820,856,110.70/287,938.12
  6. Step 6: Final answer
    x = 221,647.82

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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.