Home / 389,640.04-537,825.76-228,560.20

Finding the Fourth Proportional to 389,640.04, 537,825.76 and 228,560.20

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Solution

The fourth proportional to 389,640.04, 537,825.76 and 228,560.20 is: 315,484.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,640.04 : 537,825.76 = 228,560.20 : x
  2. Step 2: Convert to fraction form
    389,640.04/537,825.76 = 228,560.20/x
  3. Step 3: Cross multiply
    389,640.04x = 537,825.76 × 228,560.20
  4. Step 4: Simplify right side
    389,640.04x = 122,925,561,354.79
  5. Step 5: Solve for x
    x = 122,925,561,354.79/389,640.04
  6. Step 6: Final answer
    x = 315,484.93

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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.