Home / 212,034.20-292,602.21-115,235.76

Finding the Fourth Proportional to 212,034.20, 292,602.21 and 115,235.76

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Solution

The fourth proportional to 212,034.20, 292,602.21 and 115,235.76 is: 159,022.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,034.20 : 292,602.21 = 115,235.76 : x
  2. Step 2: Convert to fraction form
    212,034.20/292,602.21 = 115,235.76/x
  3. Step 3: Cross multiply
    212,034.20x = 292,602.21 × 115,235.76
  4. Step 4: Simplify right side
    212,034.20x = 33,718,237,470.85
  5. Step 5: Solve for x
    x = 33,718,237,470.85/212,034.20
  6. Step 6: Final answer
    x = 159,022.64

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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.