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Finding the Fourth Proportional to 477,976.96, 717,069.52 and 145,544.32

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Solution

The fourth proportional to 477,976.96, 717,069.52 and 145,544.32 is: 218,348.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    477,976.96 : 717,069.52 = 145,544.32 : x
  2. Step 2: Convert to fraction form
    477,976.96/717,069.52 = 145,544.32/x
  3. Step 3: Cross multiply
    477,976.96x = 717,069.52 × 145,544.32
  4. Step 4: Simplify right side
    477,976.96x = 104,365,395,681.13
  5. Step 5: Solve for x
    x = 104,365,395,681.13/477,976.96
  6. Step 6: Final answer
    x = 218,348.17

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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.