Home / 213,386.48-320,079.96-55,614.80

Finding the Fourth Proportional to 213,386.48, 320,079.96 and 55,614.80

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Solution

The fourth proportional to 213,386.48, 320,079.96 and 55,614.80 is: 83,422.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,386.48 : 320,079.96 = 55,614.80 : x
  2. Step 2: Convert to fraction form
    213,386.48/320,079.96 = 55,614.80/x
  3. Step 3: Cross multiply
    213,386.48x = 320,079.96 × 55,614.80
  4. Step 4: Simplify right side
    213,386.48x = 17,801,182,959.41
  5. Step 5: Solve for x
    x = 17,801,182,959.41/213,386.48
  6. Step 6: Final answer
    x = 83,422.26

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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.