Home / 213,639.90-320,037.45-187,374.30

Finding the Fourth Proportional to 213,639.90, 320,037.45 and 187,374.30

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Solution

The fourth proportional to 213,639.90, 320,037.45 and 187,374.30 is: 280,690.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,639.90 : 320,037.45 = 187,374.30 : x
  2. Step 2: Convert to fraction form
    213,639.90/320,037.45 = 187,374.30/x
  3. Step 3: Cross multiply
    213,639.90x = 320,037.45 × 187,374.30
  4. Step 4: Simplify right side
    213,639.90x = 59,966,793,167.54
  5. Step 5: Solve for x
    x = 59,966,793,167.54/213,639.90
  6. Step 6: Final answer
    x = 280,690.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.