Home / 282,758.43-390,196.76-155,433.12

Finding the Fourth Proportional to 282,758.43, 390,196.76 and 155,433.12

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Solution

The fourth proportional to 282,758.43, 390,196.76 and 155,433.12 is: 214,492.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,758.43 : 390,196.76 = 155,433.12 : x
  2. Step 2: Convert to fraction form
    282,758.43/390,196.76 = 155,433.12/x
  3. Step 3: Cross multiply
    282,758.43x = 390,196.76 × 155,433.12
  4. Step 4: Simplify right side
    282,758.43x = 60,649,497,580.29
  5. Step 5: Solve for x
    x = 60,649,497,580.29/282,758.43
  6. Step 6: Final answer
    x = 214,492.27

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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.