Home / 220,630.29-304,460.21-122,507.42

Finding the Fourth Proportional to 220,630.29, 304,460.21 and 122,507.42

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Solution

The fourth proportional to 220,630.29, 304,460.21 and 122,507.42 is: 169,054.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,630.29 : 304,460.21 = 122,507.42 : x
  2. Step 2: Convert to fraction form
    220,630.29/304,460.21 = 122,507.42/x
  3. Step 3: Cross multiply
    220,630.29x = 304,460.21 × 122,507.42
  4. Step 4: Simplify right side
    220,630.29x = 37,298,634,207.22
  5. Step 5: Solve for x
    x = 37,298,634,207.22/220,630.29
  6. Step 6: Final answer
    x = 169,054.91

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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.