Home / 217,070.50-299,558.21-126,488.61

Finding the Fourth Proportional to 217,070.50, 299,558.21 and 126,488.61

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Solution

The fourth proportional to 217,070.50, 299,558.21 and 126,488.61 is: 174,554.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,070.50 : 299,558.21 = 126,488.61 : x
  2. Step 2: Convert to fraction form
    217,070.50/299,558.21 = 126,488.61/x
  3. Step 3: Cross multiply
    217,070.50x = 299,558.21 × 126,488.61
  4. Step 4: Simplify right side
    217,070.50x = 37,890,701,596.99
  5. Step 5: Solve for x
    x = 37,890,701,596.99/217,070.50
  6. Step 6: Final answer
    x = 174,554.82

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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.