Home / 252,178.02-378,272.43-74,688.66

Finding the Fourth Proportional to 252,178.02, 378,272.43 and 74,688.66

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Solution

The fourth proportional to 252,178.02, 378,272.43 and 74,688.66 is: 112,034.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,178.02 : 378,272.43 = 74,688.66 : x
  2. Step 2: Convert to fraction form
    252,178.02/378,272.43 = 74,688.66/x
  3. Step 3: Cross multiply
    252,178.02x = 378,272.43 × 74,688.66
  4. Step 4: Simplify right side
    252,178.02x = 28,252,660,911.64
  5. Step 5: Solve for x
    x = 28,252,660,911.64/252,178.02
  6. Step 6: Final answer
    x = 112,034.59

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.