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Finding the Fourth Proportional to 223,417.71, 335,365.29 and 90,384.93

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Solution

The fourth proportional to 223,417.71, 335,365.29 and 90,384.93 is: 135,673.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,417.71 : 335,365.29 = 90,384.93 : x
  2. Step 2: Convert to fraction form
    223,417.71/335,365.29 = 90,384.93/x
  3. Step 3: Cross multiply
    223,417.71x = 335,365.29 × 90,384.93
  4. Step 4: Simplify right side
    223,417.71x = 30,311,968,261.08
  5. Step 5: Solve for x
    x = 30,311,968,261.08/223,417.71
  6. Step 6: Final answer
    x = 135,673.97

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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.