Home / 282,696.30-390,116.37-155,369.16

Finding the Fourth Proportional to 282,696.30, 390,116.37 and 155,369.16

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Solution

The fourth proportional to 282,696.30, 390,116.37 and 155,369.16 is: 214,406.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,696.30 : 390,116.37 = 155,369.16 : x
  2. Step 2: Convert to fraction form
    282,696.30/390,116.37 = 155,369.16/x
  3. Step 3: Cross multiply
    282,696.30x = 390,116.37 × 155,369.16
  4. Step 4: Simplify right side
    282,696.30x = 60,612,052,709.15
  5. Step 5: Solve for x
    x = 60,612,052,709.15/282,696.30
  6. Step 6: Final answer
    x = 214,406.95

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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.