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Finding the Fourth Proportional to 219,099.72, 301,626.54 and 209,068.68

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Solution

The fourth proportional to 219,099.72, 301,626.54 and 209,068.68 is: 287,817.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,099.72 : 301,626.54 = 209,068.68 : x
  2. Step 2: Convert to fraction form
    219,099.72/301,626.54 = 209,068.68/x
  3. Step 3: Cross multiply
    219,099.72x = 301,626.54 × 209,068.68
  4. Step 4: Simplify right side
    219,099.72x = 63,060,662,570.77
  5. Step 5: Solve for x
    x = 63,060,662,570.77/219,099.72
  6. Step 6: Final answer
    x = 287,817.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.