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Finding the Fourth Proportional to 480,402.36, 720,358.72 and 160,439.13

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Solution

The fourth proportional to 480,402.36, 720,358.72 and 160,439.13 is: 240,576.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,402.36 : 720,358.72 = 160,439.13 : x
  2. Step 2: Convert to fraction form
    480,402.36/720,358.72 = 160,439.13/x
  3. Step 3: Cross multiply
    480,402.36x = 720,358.72 × 160,439.13
  4. Step 4: Simplify right side
    480,402.36x = 115,573,725,923.62
  5. Step 5: Solve for x
    x = 115,573,725,923.62/480,402.36
  6. Step 6: Final answer
    x = 240,576.93

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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.