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Finding the Fourth Proportional to 480,615.28, 720,972.21 and 181,347.67

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Solution

The fourth proportional to 480,615.28, 720,972.21 and 181,347.67 is: 272,040.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,615.28 : 720,972.21 = 181,347.67 : x
  2. Step 2: Convert to fraction form
    480,615.28/720,972.21 = 181,347.67/x
  3. Step 3: Cross multiply
    480,615.28x = 720,972.21 × 181,347.67
  4. Step 4: Simplify right side
    480,615.28x = 130,746,630,418.25
  5. Step 5: Solve for x
    x = 130,746,630,418.25/480,615.28
  6. Step 6: Final answer
    x = 272,040.10

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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.