Home / 213,273.18-319,908.86-86,885.24

Finding the Fourth Proportional to 213,273.18, 319,908.86 and 86,885.24

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Solution

The fourth proportional to 213,273.18, 319,908.86 and 86,885.24 is: 130,327.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,273.18 : 319,908.86 = 86,885.24 : x
  2. Step 2: Convert to fraction form
    213,273.18/319,908.86 = 86,885.24/x
  3. Step 3: Cross multiply
    213,273.18x = 319,908.86 × 86,885.24
  4. Step 4: Simplify right side
    213,273.18x = 27,795,357,896.55
  5. Step 5: Solve for x
    x = 27,795,357,896.55/213,273.18
  6. Step 6: Final answer
    x = 130,327.49

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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.