Home / 282,572.28-390,294.72-211,268.52

Finding the Fourth Proportional to 282,572.28, 390,294.72 and 211,268.52

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Solution

The fourth proportional to 282,572.28, 390,294.72 and 211,268.52 is: 291,808.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,572.28 : 390,294.72 = 211,268.52 : x
  2. Step 2: Convert to fraction form
    282,572.28/390,294.72 = 211,268.52/x
  3. Step 3: Cross multiply
    282,572.28x = 390,294.72 × 211,268.52
  4. Step 4: Simplify right side
    282,572.28x = 82,456,987,858.21
  5. Step 5: Solve for x
    x = 82,456,987,858.21/282,572.28
  6. Step 6: Final answer
    x = 291,808.48

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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.