Home / 389,364.79-537,438.32-228,254.71

Finding the Fourth Proportional to 389,364.79, 537,438.32 and 228,254.71

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Solution

The fourth proportional to 389,364.79, 537,438.32 and 228,254.71 is: 315,058.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,364.79 : 537,438.32 = 228,254.71 : x
  2. Step 2: Convert to fraction form
    389,364.79/537,438.32 = 228,254.71/x
  3. Step 3: Cross multiply
    389,364.79x = 537,438.32 × 228,254.71
  4. Step 4: Simplify right side
    389,364.79x = 122,672,827,101.53
  5. Step 5: Solve for x
    x = 122,672,827,101.53/389,364.79
  6. Step 6: Final answer
    x = 315,058.86

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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.