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Finding the Fourth Proportional to 480,031.60, 720,047.40 and 164,441.20

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Solution

The fourth proportional to 480,031.60, 720,047.40 and 164,441.20 is: 246,661.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,031.60 : 720,047.40 = 164,441.20 : x
  2. Step 2: Convert to fraction form
    480,031.60/720,047.40 = 164,441.20/x
  3. Step 3: Cross multiply
    480,031.60x = 720,047.40 × 164,441.20
  4. Step 4: Simplify right side
    480,031.60x = 118,405,458,512.88
  5. Step 5: Solve for x
    x = 118,405,458,512.88/480,031.60
  6. Step 6: Final answer
    x = 246,661.80

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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.