Home / 389,253.83-537,183.62-225,897.75

Finding the Fourth Proportional to 389,253.83, 537,183.62 and 225,897.75

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Solution

The fourth proportional to 389,253.83, 537,183.62 and 225,897.75 is: 311,746.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,253.83 : 537,183.62 = 225,897.75 : x
  2. Step 2: Convert to fraction form
    389,253.83/537,183.62 = 225,897.75/x
  3. Step 3: Cross multiply
    389,253.83x = 537,183.62 × 225,897.75
  4. Step 4: Simplify right side
    389,253.83x = 121,348,569,965.37
  5. Step 5: Solve for x
    x = 121,348,569,965.37/389,253.83
  6. Step 6: Final answer
    x = 311,746.63

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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.