Home / 282,980.16-390,186-225,575.04

Finding the Fourth Proportional to 282,980.16, 390,186 and 225,575.04

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Solution

The fourth proportional to 282,980.16, 390,186 and 225,575.04 is: 311,033.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,980.16 : 390,186 = 225,575.04 : x
  2. Step 2: Convert to fraction form
    282,980.16/390,186 = 225,575.04/x
  3. Step 3: Cross multiply
    282,980.16x = 390,186 × 225,575.04
  4. Step 4: Simplify right side
    282,980.16x = 88,016,222,557.44
  5. Step 5: Solve for x
    x = 88,016,222,557.44/282,980.16
  6. Step 6: Final answer
    x = 311,033.19

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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.