Home / 282,990.04-390,581.70-162,212.28

Finding the Fourth Proportional to 282,990.04, 390,581.70 and 162,212.28

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Solution

The fourth proportional to 282,990.04, 390,581.70 and 162,212.28 is: 223,884.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,990.04 : 390,581.70 = 162,212.28 : x
  2. Step 2: Convert to fraction form
    282,990.04/390,581.70 = 162,212.28/x
  3. Step 3: Cross multiply
    282,990.04x = 390,581.70 × 162,212.28
  4. Step 4: Simplify right side
    282,990.04x = 63,357,148,083.28
  5. Step 5: Solve for x
    x = 63,357,148,083.28/282,990.04
  6. Step 6: Final answer
    x = 223,884.73

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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.