Home / 389,255.52-537,172.38-210,407.52

Finding the Fourth Proportional to 389,255.52, 537,172.38 and 210,407.52

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Solution

The fourth proportional to 389,255.52, 537,172.38 and 210,407.52 is: 290,362.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,255.52 : 537,172.38 = 210,407.52 : x
  2. Step 2: Convert to fraction form
    389,255.52/537,172.38 = 210,407.52/x
  3. Step 3: Cross multiply
    389,255.52x = 537,172.38 × 210,407.52
  4. Step 4: Simplify right side
    389,255.52x = 113,025,108,288.30
  5. Step 5: Solve for x
    x = 113,025,108,288.30/389,255.52
  6. Step 6: Final answer
    x = 290,362.25

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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.