Home / 389,795.20-537,919.04-210,947.20

Finding the Fourth Proportional to 389,795.20, 537,919.04 and 210,947.20

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Solution

The fourth proportional to 389,795.20, 537,919.04 and 210,947.20 is: 291,108.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,795.20 : 537,919.04 = 210,947.20 : x
  2. Step 2: Convert to fraction form
    389,795.20/537,919.04 = 210,947.20/x
  3. Step 3: Cross multiply
    389,795.20x = 537,919.04 × 210,947.20
  4. Step 4: Simplify right side
    389,795.20x = 113,472,515,314.69
  5. Step 5: Solve for x
    x = 113,472,515,314.69/389,795.20
  6. Step 6: Final answer
    x = 291,108.04

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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.