Home / 282,754.58-390,191.43-155,429.27

Finding the Fourth Proportional to 282,754.58, 390,191.43 and 155,429.27

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Solution

The fourth proportional to 282,754.58, 390,191.43 and 155,429.27 is: 214,486.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,754.58 : 390,191.43 = 155,429.27 : x
  2. Step 2: Convert to fraction form
    282,754.58/390,191.43 = 155,429.27/x
  3. Step 3: Cross multiply
    282,754.58x = 390,191.43 × 155,429.27
  4. Step 4: Simplify right side
    282,754.58x = 60,647,166,397.05
  5. Step 5: Solve for x
    x = 60,647,166,397.05/282,754.58
  6. Step 6: Final answer
    x = 214,486.95

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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.