Home / 389,664.28-537,695.65-226,288.89

Finding the Fourth Proportional to 389,664.28, 537,695.65 and 226,288.89

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Solution

The fourth proportional to 389,664.28, 537,695.65 and 226,288.89 is: 312,254.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,664.28 : 537,695.65 = 226,288.89 : x
  2. Step 2: Convert to fraction form
    389,664.28/537,695.65 = 226,288.89/x
  3. Step 3: Cross multiply
    389,664.28x = 537,695.65 × 226,288.89
  4. Step 4: Simplify right side
    389,664.28x = 121,674,551,601.87
  5. Step 5: Solve for x
    x = 121,674,551,601.87/389,664.28
  6. Step 6: Final answer
    x = 312,254.82

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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.