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Finding the Fourth Proportional to 480,581.23, 720,871.89 and 181,129

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Solution

The fourth proportional to 480,581.23, 720,871.89 and 181,129 is: 271,693.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,581.23 : 720,871.89 = 181,129 : x
  2. Step 2: Convert to fraction form
    480,581.23/720,871.89 = 181,129/x
  3. Step 3: Cross multiply
    480,581.23x = 720,871.89 × 181,129
  4. Step 4: Simplify right side
    480,581.23x = 130,570,804,563.81
  5. Step 5: Solve for x
    x = 130,570,804,563.81/480,581.23
  6. Step 6: Final answer
    x = 271,693.52

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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.