Home / 211,870.20-317,546.10-93,415.80

Finding the Fourth Proportional to 211,870.20, 317,546.10 and 93,415.80

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Solution

The fourth proportional to 211,870.20, 317,546.10 and 93,415.80 is: 140,009.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,870.20 : 317,546.10 = 93,415.80 : x
  2. Step 2: Convert to fraction form
    211,870.20/317,546.10 = 93,415.80/x
  3. Step 3: Cross multiply
    211,870.20x = 317,546.10 × 93,415.80
  4. Step 4: Simplify right side
    211,870.20x = 29,663,822,968.38
  5. Step 5: Solve for x
    x = 29,663,822,968.38/211,870.20
  6. Step 6: Final answer
    x = 140,009.42

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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.