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Finding the Fourth Proportional to 219,957.80, 303,566.45 and 124,470.65

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Solution

The fourth proportional to 219,957.80, 303,566.45 and 124,470.65 is: 171,783.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,957.80 : 303,566.45 = 124,470.65 : x
  2. Step 2: Convert to fraction form
    219,957.80/303,566.45 = 124,470.65/x
  3. Step 3: Cross multiply
    219,957.80x = 303,566.45 × 124,470.65
  4. Step 4: Simplify right side
    219,957.80x = 37,785,113,486.26
  5. Step 5: Solve for x
    x = 37,785,113,486.26/219,957.80
  6. Step 6: Final answer
    x = 171,783.47

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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.