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Finding the Fourth Proportional to 219,590.40, 303,035.84 and 118,988.40

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Solution

The fourth proportional to 219,590.40, 303,035.84 and 118,988.40 is: 164,204.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,590.40 : 303,035.84 = 118,988.40 : x
  2. Step 2: Convert to fraction form
    219,590.40/303,035.84 = 118,988.40/x
  3. Step 3: Cross multiply
    219,590.40x = 303,035.84 × 118,988.40
  4. Step 4: Simplify right side
    219,590.40x = 36,057,749,744.26
  5. Step 5: Solve for x
    x = 36,057,749,744.26/219,590.40
  6. Step 6: Final answer
    x = 164,204.58

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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.