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Finding the Fourth Proportional to 358,848.60, 538,175.70 and 106,128.60

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Solution

The fourth proportional to 358,848.60, 538,175.70 and 106,128.60 is: 159,164.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,848.60 : 538,175.70 = 106,128.60 : x
  2. Step 2: Convert to fraction form
    358,848.60/538,175.70 = 106,128.60/x
  3. Step 3: Cross multiply
    358,848.60x = 538,175.70 × 106,128.60
  4. Step 4: Simplify right side
    358,848.60x = 57,115,833,595.02
  5. Step 5: Solve for x
    x = 57,115,833,595.02/358,848.60
  6. Step 6: Final answer
    x = 159,164.15

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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.