Home / 220,421.51-304,185.01-123,646.82

Finding the Fourth Proportional to 220,421.51, 304,185.01 and 123,646.82

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Solution

The fourth proportional to 220,421.51, 304,185.01 and 123,646.82 is: 170,634.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,421.51 : 304,185.01 = 123,646.82 : x
  2. Step 2: Convert to fraction form
    220,421.51/304,185.01 = 123,646.82/x
  3. Step 3: Cross multiply
    220,421.51x = 304,185.01 × 123,646.82
  4. Step 4: Simplify right side
    220,421.51x = 37,611,507,657.24
  5. Step 5: Solve for x
    x = 37,611,507,657.24/220,421.51
  6. Step 6: Final answer
    x = 170,634.47

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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.