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Finding the Fourth Proportional to 219,011.73, 328,260.04 and 98,928.53

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Solution

The fourth proportional to 219,011.73, 328,260.04 and 98,928.53 is: 148,276.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,011.73 : 328,260.04 = 98,928.53 : x
  2. Step 2: Convert to fraction form
    219,011.73/328,260.04 = 98,928.53/x
  3. Step 3: Cross multiply
    219,011.73x = 328,260.04 × 98,928.53
  4. Step 4: Simplify right side
    219,011.73x = 32,474,281,079.00
  5. Step 5: Solve for x
    x = 32,474,281,079.00/219,011.73
  6. Step 6: Final answer
    x = 148,276.45

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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.