Home / 282,969.14-390,489.26-155,644.73

Finding the Fourth Proportional to 282,969.14, 390,489.26 and 155,644.73

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Solution

The fourth proportional to 282,969.14, 390,489.26 and 155,644.73 is: 214,785.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,969.14 : 390,489.26 = 155,644.73 : x
  2. Step 2: Convert to fraction form
    282,969.14/390,489.26 = 155,644.73/x
  3. Step 3: Cross multiply
    282,969.14x = 390,489.26 × 155,644.73
  4. Step 4: Simplify right side
    282,969.14x = 60,777,592,709.93
  5. Step 5: Solve for x
    x = 60,777,592,709.93/282,969.14
  6. Step 6: Final answer
    x = 214,785.24

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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.