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Finding the Fourth Proportional to 306,564.04, 423,068.12 and 191,805.92

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Solution

The fourth proportional to 306,564.04, 423,068.12 and 191,805.92 is: 264,698.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,564.04 : 423,068.12 = 191,805.92 : x
  2. Step 2: Convert to fraction form
    306,564.04/423,068.12 = 191,805.92/x
  3. Step 3: Cross multiply
    306,564.04x = 423,068.12 × 191,805.92
  4. Step 4: Simplify right side
    306,564.04x = 81,146,969,979.27
  5. Step 5: Solve for x
    x = 81,146,969,979.27/306,564.04
  6. Step 6: Final answer
    x = 264,698.27

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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.