Home / 621,281.23-931,812.49-165,878.12

Finding the Fourth Proportional to 621,281.23, 931,812.49 and 165,878.12

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Solution

The fourth proportional to 621,281.23, 931,812.49 and 165,878.12 is: 248,787.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,281.23 : 931,812.49 = 165,878.12 : x
  2. Step 2: Convert to fraction form
    621,281.23/931,812.49 = 165,878.12/x
  3. Step 3: Cross multiply
    621,281.23x = 931,812.49 × 165,878.12
  4. Step 4: Simplify right side
    621,281.23x = 154,567,303,949.88
  5. Step 5: Solve for x
    x = 154,567,303,949.88/621,281.23
  6. Step 6: Final answer
    x = 248,787.98

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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.