Home / 509,367.49-763,515.33-172,088.35

Finding the Fourth Proportional to 509,367.49, 763,515.33 and 172,088.35

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Solution

The fourth proportional to 509,367.49, 763,515.33 and 172,088.35 is: 257,951.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    509,367.49 : 763,515.33 = 172,088.35 : x
  2. Step 2: Convert to fraction form
    509,367.49/763,515.33 = 172,088.35/x
  3. Step 3: Cross multiply
    509,367.49x = 763,515.33 × 172,088.35
  4. Step 4: Simplify right side
    509,367.49x = 131,392,093,339.41
  5. Step 5: Solve for x
    x = 131,392,093,339.41/509,367.49
  6. Step 6: Final answer
    x = 257,951.47

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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.