Home / 282,943.20-390,390.96-182,220

Finding the Fourth Proportional to 282,943.20, 390,390.96 and 182,220

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Solution

The fourth proportional to 282,943.20, 390,390.96 and 182,220 is: 251,418.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,943.20 : 390,390.96 = 182,220 : x
  2. Step 2: Convert to fraction form
    282,943.20/390,390.96 = 182,220/x
  3. Step 3: Cross multiply
    282,943.20x = 390,390.96 × 182,220
  4. Step 4: Simplify right side
    282,943.20x = 71,137,040,731.20
  5. Step 5: Solve for x
    x = 71,137,040,731.20/282,943.20
  6. Step 6: Final answer
    x = 251,418.10

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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.