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Finding the Fourth Proportional to 219,383.60, 328,856.70 and 100,848.20

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Solution

The fourth proportional to 219,383.60, 328,856.70 and 100,848.20 is: 151,171.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,383.60 : 328,856.70 = 100,848.20 : x
  2. Step 2: Convert to fraction form
    219,383.60/328,856.70 = 100,848.20/x
  3. Step 3: Cross multiply
    219,383.60x = 328,856.70 × 100,848.20
  4. Step 4: Simplify right side
    219,383.60x = 33,164,606,252.94
  5. Step 5: Solve for x
    x = 33,164,606,252.94/219,383.60
  6. Step 6: Final answer
    x = 151,171.77

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1.5x scale

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.