Home / 282,904.38-390,400.26-155,579.97

Finding the Fourth Proportional to 282,904.38, 390,400.26 and 155,579.97

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Solution

The fourth proportional to 282,904.38, 390,400.26 and 155,579.97 is: 214,696.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,904.38 : 390,400.26 = 155,579.97 : x
  2. Step 2: Convert to fraction form
    282,904.38/390,400.26 = 155,579.97/x
  3. Step 3: Cross multiply
    282,904.38x = 390,400.26 × 155,579.97
  4. Step 4: Simplify right side
    282,904.38x = 60,738,460,738.79
  5. Step 5: Solve for x
    x = 60,738,460,738.79/282,904.38
  6. Step 6: Final answer
    x = 214,696.08

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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.