Home / 253,022.31-349,432.25-218,866.82

Finding the Fourth Proportional to 253,022.31, 349,432.25 and 218,866.82

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Solution

The fourth proportional to 253,022.31, 349,432.25 and 218,866.82 is: 302,262.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,022.31 : 349,432.25 = 218,866.82 : x
  2. Step 2: Convert to fraction form
    253,022.31/349,432.25 = 218,866.82/x
  3. Step 3: Cross multiply
    253,022.31x = 349,432.25 × 218,866.82
  4. Step 4: Simplify right side
    253,022.31x = 76,479,122,521.45
  5. Step 5: Solve for x
    x = 76,479,122,521.45/253,022.31
  6. Step 6: Final answer
    x = 302,262.37

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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.