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Finding the Fourth Proportional to 553,626.70, 830,440.01 and 132,902.57

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Solution

The fourth proportional to 553,626.70, 830,440.01 and 132,902.57 is: 199,353.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,626.70 : 830,440.01 = 132,902.57 : x
  2. Step 2: Convert to fraction form
    553,626.70/830,440.01 = 132,902.57/x
  3. Step 3: Cross multiply
    553,626.70x = 830,440.01 × 132,902.57
  4. Step 4: Simplify right side
    553,626.70x = 110,367,613,968.18
  5. Step 5: Solve for x
    x = 110,367,613,968.18/553,626.70
  6. Step 6: Final answer
    x = 199,353.85

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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.