Home / 264,210.11-396,359.18-86,669.45

Finding the Fourth Proportional to 264,210.11, 396,359.18 and 86,669.45

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Solution

The fourth proportional to 264,210.11, 396,359.18 and 86,669.45 is: 130,018.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    264,210.11 : 396,359.18 = 86,669.45 : x
  2. Step 2: Convert to fraction form
    264,210.11/396,359.18 = 86,669.45/x
  3. Step 3: Cross multiply
    264,210.11x = 396,359.18 × 86,669.45
  4. Step 4: Simplify right side
    264,210.11x = 34,352,231,699.70
  5. Step 5: Solve for x
    x = 34,352,231,699.70/264,210.11
  6. Step 6: Final answer
    x = 130,018.61

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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.