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Finding the Fourth Proportional to 480,317.28, 720,490.49 and 164,769.63

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Solution

The fourth proportional to 480,317.28, 720,490.49 and 164,769.63 is: 247,159.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,317.28 : 720,490.49 = 164,769.63 : x
  2. Step 2: Convert to fraction form
    480,317.28/720,490.49 = 164,769.63/x
  3. Step 3: Cross multiply
    480,317.28x = 720,490.49 × 164,769.63
  4. Step 4: Simplify right side
    480,317.28x = 118,714,951,455.82
  5. Step 5: Solve for x
    x = 118,714,951,455.82/480,317.28
  6. Step 6: Final answer
    x = 247,159.44

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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.