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Finding the Fourth Proportional to 223,579.51, 308,448.68 and 126,762.98

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Solution

The fourth proportional to 223,579.51, 308,448.68 and 126,762.98 is: 174,881.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,579.51 : 308,448.68 = 126,762.98 : x
  2. Step 2: Convert to fraction form
    223,579.51/308,448.68 = 126,762.98/x
  3. Step 3: Cross multiply
    223,579.51x = 308,448.68 × 126,762.98
  4. Step 4: Simplify right side
    223,579.51x = 39,099,871,677.81
  5. Step 5: Solve for x
    x = 39,099,871,677.81/223,579.51
  6. Step 6: Final answer
    x = 174,881.29

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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.