Home / 220,953.44-305,031.14-172,451.20

Finding the Fourth Proportional to 220,953.44, 305,031.14 and 172,451.20

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Solution

The fourth proportional to 220,953.44, 305,031.14 and 172,451.20 is: 238,072.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,953.44 : 305,031.14 = 172,451.20 : x
  2. Step 2: Convert to fraction form
    220,953.44/305,031.14 = 172,451.20/x
  3. Step 3: Cross multiply
    220,953.44x = 305,031.14 × 172,451.20
  4. Step 4: Simplify right side
    220,953.44x = 52,602,986,130.37
  5. Step 5: Solve for x
    x = 52,602,986,130.37/220,953.44
  6. Step 6: Final answer
    x = 238,072.72

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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.