Home / 358,856.34-538,389.78-106,143.50

Finding the Fourth Proportional to 358,856.34, 538,389.78 and 106,143.50

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Solution

The fourth proportional to 358,856.34, 538,389.78 and 106,143.50 is: 159,246.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,856.34 : 538,389.78 = 106,143.50 : x
  2. Step 2: Convert to fraction form
    358,856.34/538,389.78 = 106,143.50/x
  3. Step 3: Cross multiply
    358,856.34x = 538,389.78 × 106,143.50
  4. Step 4: Simplify right side
    358,856.34x = 57,146,575,613.43
  5. Step 5: Solve for x
    x = 57,146,575,613.43/358,856.34
  6. Step 6: Final answer
    x = 159,246.39

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.