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Finding the Fourth Proportional to 553,837.10, 830,755.58 and 133,112.97

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Solution

The fourth proportional to 553,837.10, 830,755.58 and 133,112.97 is: 199,669.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,837.10 : 830,755.58 = 133,112.97 : x
  2. Step 2: Convert to fraction form
    553,837.10/830,755.58 = 133,112.97/x
  3. Step 3: Cross multiply
    553,837.10x = 830,755.58 × 133,112.97
  4. Step 4: Simplify right side
    553,837.10x = 110,584,341,932.31
  5. Step 5: Solve for x
    x = 110,584,341,932.31/553,837.10
  6. Step 6: Final answer
    x = 199,669.44

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1.5x scale

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.