Home / 220,339.31-304,161.27-148,816.21

Finding the Fourth Proportional to 220,339.31, 304,161.27 and 148,816.21

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Solution

The fourth proportional to 220,339.31, 304,161.27 and 148,816.21 is: 205,429.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,339.31 : 304,161.27 = 148,816.21 : x
  2. Step 2: Convert to fraction form
    220,339.31/304,161.27 = 148,816.21/x
  3. Step 3: Cross multiply
    220,339.31x = 304,161.27 × 148,816.21
  4. Step 4: Simplify right side
    220,339.31x = 45,264,126,669.78
  5. Step 5: Solve for x
    x = 45,264,126,669.78/220,339.31
  6. Step 6: Final answer
    x = 205,429.20

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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.