Home / 283,146.32-390,579.40-176,978

Finding the Fourth Proportional to 283,146.32, 390,579.40 and 176,978

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Solution

The fourth proportional to 283,146.32, 390,579.40 and 176,978 is: 244,128.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,146.32 : 390,579.40 = 176,978 : x
  2. Step 2: Convert to fraction form
    283,146.32/390,579.40 = 176,978/x
  3. Step 3: Cross multiply
    283,146.32x = 390,579.40 × 176,978
  4. Step 4: Simplify right side
    283,146.32x = 69,123,961,053.20
  5. Step 5: Solve for x
    x = 69,123,961,053.20/283,146.32
  6. Step 6: Final answer
    x = 244,128.06

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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.