Home / 389,365.18-537,324.23-228,220.20

Finding the Fourth Proportional to 389,365.18, 537,324.23 and 228,220.20

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Solution

The fourth proportional to 389,365.18, 537,324.23 and 228,220.20 is: 314,944.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,365.18 : 537,324.23 = 228,220.20 : x
  2. Step 2: Convert to fraction form
    389,365.18/537,324.23 = 228,220.20/x
  3. Step 3: Cross multiply
    389,365.18x = 537,324.23 × 228,220.20
  4. Step 4: Simplify right side
    389,365.18x = 122,628,243,806.00
  5. Step 5: Solve for x
    x = 122,628,243,806.00/389,365.18
  6. Step 6: Final answer
    x = 314,944.04

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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.