Home / 389,268.12-537,189.12-219,501.03

Finding the Fourth Proportional to 389,268.12, 537,189.12 and 219,501.03

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Solution

The fourth proportional to 389,268.12, 537,189.12 and 219,501.03 is: 302,910.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,268.12 : 537,189.12 = 219,501.03 : x
  2. Step 2: Convert to fraction form
    389,268.12/537,189.12 = 219,501.03/x
  3. Step 3: Cross multiply
    389,268.12x = 537,189.12 × 219,501.03
  4. Step 4: Simplify right side
    389,268.12x = 117,913,565,144.79
  5. Step 5: Solve for x
    x = 117,913,565,144.79/389,268.12
  6. Step 6: Final answer
    x = 302,910.92

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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.