Home / 220,485.59-304,312.37-124,992.66

Finding the Fourth Proportional to 220,485.59, 304,312.37 and 124,992.66

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Solution

The fourth proportional to 220,485.59, 304,312.37 and 124,992.66 is: 172,513.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,485.59 : 304,312.37 = 124,992.66 : x
  2. Step 2: Convert to fraction form
    220,485.59/304,312.37 = 124,992.66/x
  3. Step 3: Cross multiply
    220,485.59x = 304,312.37 × 124,992.66
  4. Step 4: Simplify right side
    220,485.59x = 38,036,811,972.24
  5. Step 5: Solve for x
    x = 38,036,811,972.24/220,485.59
  6. Step 6: Final answer
    x = 172,513.83

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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.