Home / 282,694.20-390,101.49-155,369.89

Finding the Fourth Proportional to 282,694.20, 390,101.49 and 155,369.89

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Solution

The fourth proportional to 282,694.20, 390,101.49 and 155,369.89 is: 214,401.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,694.20 : 390,101.49 = 155,369.89 : x
  2. Step 2: Convert to fraction form
    282,694.20/390,101.49 = 155,369.89/x
  3. Step 3: Cross multiply
    282,694.20x = 390,101.49 × 155,369.89
  4. Step 4: Simplify right side
    282,694.20x = 60,610,025,590.14
  5. Step 5: Solve for x
    x = 60,610,025,590.14/282,694.20
  6. Step 6: Final answer
    x = 214,401.38

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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.