Home / 342,177.02-472,047.33-221,357.28

Finding the Fourth Proportional to 342,177.02, 472,047.33 and 221,357.28

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Solution

The fourth proportional to 342,177.02, 472,047.33 and 221,357.28 is: 305,371.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,177.02 : 472,047.33 = 221,357.28 : x
  2. Step 2: Convert to fraction form
    342,177.02/472,047.33 = 221,357.28/x
  3. Step 3: Cross multiply
    342,177.02x = 472,047.33 × 221,357.28
  4. Step 4: Simplify right side
    342,177.02x = 104,491,113,000.06
  5. Step 5: Solve for x
    x = 104,491,113,000.06/342,177.02
  6. Step 6: Final answer
    x = 305,371.51

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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.