Home / 389,298.23-537,129.89-228,066.61

Finding the Fourth Proportional to 389,298.23, 537,129.89 and 228,066.61

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Solution

The fourth proportional to 389,298.23, 537,129.89 and 228,066.61 is: 314,672.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,298.23 : 537,129.89 = 228,066.61 : x
  2. Step 2: Convert to fraction form
    389,298.23/537,129.89 = 228,066.61/x
  3. Step 3: Cross multiply
    389,298.23x = 537,129.89 × 228,066.61
  4. Step 4: Simplify right side
    389,298.23x = 122,501,391,799.15
  5. Step 5: Solve for x
    x = 122,501,391,799.15/389,298.23
  6. Step 6: Final answer
    x = 314,672.36

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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.