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Finding the Fourth Proportional to 223,800.63, 308,848.80 and 121,829.03

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Solution

The fourth proportional to 223,800.63, 308,848.80 and 121,829.03 is: 168,126.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,800.63 : 308,848.80 = 121,829.03 : x
  2. Step 2: Convert to fraction form
    223,800.63/308,848.80 = 121,829.03/x
  3. Step 3: Cross multiply
    223,800.63x = 308,848.80 × 121,829.03
  4. Step 4: Simplify right side
    223,800.63x = 37,626,748,176.42
  5. Step 5: Solve for x
    x = 37,626,748,176.42/223,800.63
  6. Step 6: Final answer
    x = 168,126.19

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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.