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Finding the Fourth Proportional to 310,216.68, 428,032.61 and 181,096.56

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Solution

The fourth proportional to 310,216.68, 428,032.61 and 181,096.56 is: 249,874.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,216.68 : 428,032.61 = 181,096.56 : x
  2. Step 2: Convert to fraction form
    310,216.68/428,032.61 = 181,096.56/x
  3. Step 3: Cross multiply
    310,216.68x = 428,032.61 × 181,096.56
  4. Step 4: Simplify right side
    310,216.68x = 77,515,232,333.34
  5. Step 5: Solve for x
    x = 77,515,232,333.34/310,216.68
  6. Step 6: Final answer
    x = 249,874.48

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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.