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Finding the Fourth Proportional to 219,693.48, 328,752.90 and 190,213.08

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Solution

The fourth proportional to 219,693.48, 328,752.90 and 190,213.08 is: 284,637.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,693.48 : 328,752.90 = 190,213.08 : x
  2. Step 2: Convert to fraction form
    219,693.48/328,752.90 = 190,213.08/x
  3. Step 3: Cross multiply
    219,693.48x = 328,752.90 × 190,213.08
  4. Step 4: Simplify right side
    219,693.48x = 62,533,101,667.93
  5. Step 5: Solve for x
    x = 62,533,101,667.93/219,693.48
  6. Step 6: Final answer
    x = 284,637.95

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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.