Home / 226,779.90-340,299.45-86,639.10

Finding the Fourth Proportional to 226,779.90, 340,299.45 and 86,639.10

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Solution

The fourth proportional to 226,779.90, 340,299.45 and 86,639.10 is: 130,008.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,779.90 : 340,299.45 = 86,639.10 : x
  2. Step 2: Convert to fraction form
    226,779.90/340,299.45 = 86,639.10/x
  3. Step 3: Cross multiply
    226,779.90x = 340,299.45 × 86,639.10
  4. Step 4: Simplify right side
    226,779.90x = 29,483,238,078.50
  5. Step 5: Solve for x
    x = 29,483,238,078.50/226,779.90
  6. Step 6: Final answer
    x = 130,008.16

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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.