Home / 283,261.59-390,851.28-170,086.77

Finding the Fourth Proportional to 283,261.59, 390,851.28 and 170,086.77

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Solution

The fourth proportional to 283,261.59, 390,851.28 and 170,086.77 is: 234,689.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,261.59 : 390,851.28 = 170,086.77 : x
  2. Step 2: Convert to fraction form
    283,261.59/390,851.28 = 170,086.77/x
  3. Step 3: Cross multiply
    283,261.59x = 390,851.28 × 170,086.77
  4. Step 4: Simplify right side
    283,261.59x = 66,478,631,765.57
  5. Step 5: Solve for x
    x = 66,478,631,765.57/283,261.59
  6. Step 6: Final answer
    x = 234,689.89

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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.