Home / 282,865.85-390,354.87-155,541.44

Finding the Fourth Proportional to 282,865.85, 390,354.87 and 155,541.44

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Solution

The fourth proportional to 282,865.85, 390,354.87 and 155,541.44 is: 214,647.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,865.85 : 390,354.87 = 155,541.44 : x
  2. Step 2: Convert to fraction form
    282,865.85/390,354.87 = 155,541.44/x
  3. Step 3: Cross multiply
    282,865.85x = 390,354.87 × 155,541.44
  4. Step 4: Simplify right side
    282,865.85x = 60,716,358,614.65
  5. Step 5: Solve for x
    x = 60,716,358,614.65/282,865.85
  6. Step 6: Final answer
    x = 214,647.19

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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.