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Finding the Fourth Proportional to 553,640.16, 830,577.12 and 179,634.24

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Solution

The fourth proportional to 553,640.16, 830,577.12 and 179,634.24 is: 269,489.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,640.16 : 830,577.12 = 179,634.24 : x
  2. Step 2: Convert to fraction form
    553,640.16/830,577.12 = 179,634.24/x
  3. Step 3: Cross multiply
    553,640.16x = 830,577.12 × 179,634.24
  4. Step 4: Simplify right side
    553,640.16x = 149,200,089,712.59
  5. Step 5: Solve for x
    x = 149,200,089,712.59/553,640.16
  6. Step 6: Final answer
    x = 269,489.28

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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.