Home / 220,461.47-304,235.55-122,343.72

Finding the Fourth Proportional to 220,461.47, 304,235.55 and 122,343.72

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Solution

The fourth proportional to 220,461.47, 304,235.55 and 122,343.72 is: 168,833.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,461.47 : 304,235.55 = 122,343.72 : x
  2. Step 2: Convert to fraction form
    220,461.47/304,235.55 = 122,343.72/x
  3. Step 3: Cross multiply
    220,461.47x = 304,235.55 × 122,343.72
  4. Step 4: Simplify right side
    220,461.47x = 37,221,308,943.25
  5. Step 5: Solve for x
    x = 37,221,308,943.25/220,461.47
  6. Step 6: Final answer
    x = 168,833.63

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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.