Home / 358,828.11-538,291.37-106,128.47

Finding the Fourth Proportional to 358,828.11, 538,291.37 and 106,128.47

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Solution

The fourth proportional to 358,828.11, 538,291.37 and 106,128.47 is: 159,207.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,828.11 : 538,291.37 = 106,128.47 : x
  2. Step 2: Convert to fraction form
    358,828.11/538,291.37 = 106,128.47/x
  3. Step 3: Cross multiply
    358,828.11x = 538,291.37 × 106,128.47
  4. Step 4: Simplify right side
    358,828.11x = 57,128,041,123.35
  5. Step 5: Solve for x
    x = 57,128,041,123.35/358,828.11
  6. Step 6: Final answer
    x = 159,207.26

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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.