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Finding the Fourth Proportional to 220,679.22, 304,844.76 and 212,486.16

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Solution

The fourth proportional to 220,679.22, 304,844.76 and 212,486.16 is: 293,526.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,679.22 : 304,844.76 = 212,486.16 : x
  2. Step 2: Convert to fraction form
    220,679.22/304,844.76 = 212,486.16/x
  3. Step 3: Cross multiply
    220,679.22x = 304,844.76 × 212,486.16
  4. Step 4: Simplify right side
    220,679.22x = 64,775,292,448.52
  5. Step 5: Solve for x
    x = 64,775,292,448.52/220,679.22
  6. Step 6: Final answer
    x = 293,526.92

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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.