Home / 389,273.20-537,197.16-210,425.20

Finding the Fourth Proportional to 389,273.20, 537,197.16 and 210,425.20

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Solution

The fourth proportional to 389,273.20, 537,197.16 and 210,425.20 is: 290,386.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,273.20 : 537,197.16 = 210,425.20 : x
  2. Step 2: Convert to fraction form
    389,273.20/537,197.16 = 210,425.20/x
  3. Step 3: Cross multiply
    389,273.20x = 537,197.16 × 210,425.20
  4. Step 4: Simplify right side
    389,273.20x = 113,039,819,832.43
  5. Step 5: Solve for x
    x = 113,039,819,832.43/389,273.20
  6. Step 6: Final answer
    x = 290,386.85

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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.