Home / 220,421.32-304,184.75-123,646.63

Finding the Fourth Proportional to 220,421.32, 304,184.75 and 123,646.63

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Solution

The fourth proportional to 220,421.32, 304,184.75 and 123,646.63 is: 170,634.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,421.32 : 304,184.75 = 123,646.63 : x
  2. Step 2: Convert to fraction form
    220,421.32/304,184.75 = 123,646.63/x
  3. Step 3: Cross multiply
    220,421.32x = 304,184.75 × 123,646.63
  4. Step 4: Simplify right side
    220,421.32x = 37,611,419,234.89
  5. Step 5: Solve for x
    x = 37,611,419,234.89/220,421.32
  6. Step 6: Final answer
    x = 170,634.22

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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.