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Finding the Fourth Proportional to 223,466.79, 308,384.15 and 122,864.79

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Solution

The fourth proportional to 223,466.79, 308,384.15 and 122,864.79 is: 169,553.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,466.79 : 308,384.15 = 122,864.79 : x
  2. Step 2: Convert to fraction form
    223,466.79/308,384.15 = 122,864.79/x
  3. Step 3: Cross multiply
    223,466.79x = 308,384.15 × 122,864.79
  4. Step 4: Simplify right side
    223,466.79x = 37,889,553,829.08
  5. Step 5: Solve for x
    x = 37,889,553,829.08/223,466.79
  6. Step 6: Final answer
    x = 169,553.40

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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.