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Finding the Fourth Proportional to 219,211.34, 328,795.67 and 148,587.81

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Solution

The fourth proportional to 219,211.34, 328,795.67 and 148,587.81 is: 222,867.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,211.34 : 328,795.67 = 148,587.81 : x
  2. Step 2: Convert to fraction form
    219,211.34/328,795.67 = 148,587.81/x
  3. Step 3: Cross multiply
    219,211.34x = 328,795.67 × 148,587.81
  4. Step 4: Simplify right side
    219,211.34x = 48,855,029,898.08
  5. Step 5: Solve for x
    x = 48,855,029,898.08/219,211.34
  6. Step 6: Final answer
    x = 222,867.26

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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.