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Finding the Fourth Proportional to 219,987.54, 303,582.96 and 119,385.54

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Solution

The fourth proportional to 219,987.54, 303,582.96 and 119,385.54 is: 164,752.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,987.54 : 303,582.96 = 119,385.54 : x
  2. Step 2: Convert to fraction form
    219,987.54/303,582.96 = 119,385.54/x
  3. Step 3: Cross multiply
    219,987.54x = 303,582.96 × 119,385.54
  4. Step 4: Simplify right side
    219,987.54x = 36,243,415,614.40
  5. Step 5: Solve for x
    x = 36,243,415,614.40/219,987.54
  6. Step 6: Final answer
    x = 164,752.13

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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.