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Finding the Fourth Proportional to 306,637.73, 423,164.08 and 168,832.69

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Solution

The fourth proportional to 306,637.73, 423,164.08 and 168,832.69 is: 232,991.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,637.73 : 423,164.08 = 168,832.69 : x
  2. Step 2: Convert to fraction form
    306,637.73/423,164.08 = 168,832.69/x
  3. Step 3: Cross multiply
    306,637.73x = 423,164.08 × 168,832.69
  4. Step 4: Simplify right side
    306,637.73x = 71,443,927,842.17
  5. Step 5: Solve for x
    x = 71,443,927,842.17/306,637.73
  6. Step 6: Final answer
    x = 232,991.31

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1.5x scale

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.