Home / 282,904.29-390,400.13-155,579.90

Finding the Fourth Proportional to 282,904.29, 390,400.13 and 155,579.90

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Solution

The fourth proportional to 282,904.29, 390,400.13 and 155,579.90 is: 214,695.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,904.29 : 390,400.13 = 155,579.90 : x
  2. Step 2: Convert to fraction form
    282,904.29/390,400.13 = 155,579.90/x
  3. Step 3: Cross multiply
    282,904.29x = 390,400.13 × 155,579.90
  4. Step 4: Simplify right side
    282,904.29x = 60,738,410,455.49
  5. Step 5: Solve for x
    x = 60,738,410,455.49/282,904.29
  6. Step 6: Final answer
    x = 214,695.97

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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.