Home / 309,515.18-427,219.52-182,264.58

Finding the Fourth Proportional to 309,515.18, 427,219.52 and 182,264.58

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Solution

The fourth proportional to 309,515.18, 427,219.52 and 182,264.58 is: 251,577.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,515.18 : 427,219.52 = 182,264.58 : x
  2. Step 2: Convert to fraction form
    309,515.18/427,219.52 = 182,264.58/x
  3. Step 3: Cross multiply
    309,515.18x = 427,219.52 × 182,264.58
  4. Step 4: Simplify right side
    309,515.18x = 77,866,985,469.28
  5. Step 5: Solve for x
    x = 77,866,985,469.28/309,515.18
  6. Step 6: Final answer
    x = 251,577.28

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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.