Home / 426,164.08-639,080.04-159,779.28

Finding the Fourth Proportional to 426,164.08, 639,080.04 and 159,779.28

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Solution

The fourth proportional to 426,164.08, 639,080.04 and 159,779.28 is: 239,606.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,164.08 : 639,080.04 = 159,779.28 : x
  2. Step 2: Convert to fraction form
    426,164.08/639,080.04 = 159,779.28/x
  3. Step 3: Cross multiply
    426,164.08x = 639,080.04 × 159,779.28
  4. Step 4: Simplify right side
    426,164.08x = 102,111,748,653.57
  5. Step 5: Solve for x
    x = 102,111,748,653.57/426,164.08
  6. Step 6: Final answer
    x = 239,606.65

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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.