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Finding the Fourth Proportional to 480,313.80, 720,458.29 and 156,100.08

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Solution

The fourth proportional to 480,313.80, 720,458.29 and 156,100.08 is: 234,146.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,313.80 : 720,458.29 = 156,100.08 : x
  2. Step 2: Convert to fraction form
    480,313.80/720,458.29 = 156,100.08/x
  3. Step 3: Cross multiply
    480,313.80x = 720,458.29 × 156,100.08
  4. Step 4: Simplify right side
    480,313.80x = 112,463,594,671.87
  5. Step 5: Solve for x
    x = 112,463,594,671.87/480,313.80
  6. Step 6: Final answer
    x = 234,146.08

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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.