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Finding the Fourth Proportional to 389,423.52, 537,404.48 and 210,575.52

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Solution

The fourth proportional to 389,423.52, 537,404.48 and 210,575.52 is: 290,594.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,423.52 : 537,404.48 = 210,575.52 : x
  2. Step 2: Convert to fraction form
    389,423.52/537,404.48 = 210,575.52/x
  3. Step 3: Cross multiply
    389,423.52x = 537,404.48 × 210,575.52
  4. Step 4: Simplify right side
    389,423.52x = 113,164,227,826.33
  5. Step 5: Solve for x
    x = 113,164,227,826.33/389,423.52
  6. Step 6: Final answer
    x = 290,594.23

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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.