Home / 282,900.14-390,394.41-155,575.73

Finding the Fourth Proportional to 282,900.14, 390,394.41 and 155,575.73

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Solution

The fourth proportional to 282,900.14, 390,394.41 and 155,575.73 is: 214,690.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,900.14 : 390,394.41 = 155,575.73 : x
  2. Step 2: Convert to fraction form
    282,900.14/390,394.41 = 155,575.73/x
  3. Step 3: Cross multiply
    282,900.14x = 390,394.41 × 155,575.73
  4. Step 4: Simplify right side
    282,900.14x = 60,735,895,716.25
  5. Step 5: Solve for x
    x = 60,735,895,716.25/282,900.14
  6. Step 6: Final answer
    x = 214,690.23

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1.5x scale

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.