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Finding the Fourth Proportional to 272,036.70, 408,055.05 and 105,824.70

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Solution

The fourth proportional to 272,036.70, 408,055.05 and 105,824.70 is: 158,737.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,036.70 : 408,055.05 = 105,824.70 : x
  2. Step 2: Convert to fraction form
    272,036.70/408,055.05 = 105,824.70/x
  3. Step 3: Cross multiply
    272,036.70x = 408,055.05 × 105,824.70
  4. Step 4: Simplify right side
    272,036.70x = 43,182,303,249.74
  5. Step 5: Solve for x
    x = 43,182,303,249.74/272,036.70
  6. Step 6: Final answer
    x = 158,737.05

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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.