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Finding the Fourth Proportional to 397,677.77, 548,804.71 and 225,607.35

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Solution

The fourth proportional to 397,677.77, 548,804.71 and 225,607.35 is: 311,343.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,677.77 : 548,804.71 = 225,607.35 : x
  2. Step 2: Convert to fraction form
    397,677.77/548,804.71 = 225,607.35/x
  3. Step 3: Cross multiply
    397,677.77x = 548,804.71 × 225,607.35
  4. Step 4: Simplify right side
    397,677.77x = 123,814,376,290.62
  5. Step 5: Solve for x
    x = 123,814,376,290.62/397,677.77
  6. Step 6: Final answer
    x = 311,343.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.