Home / 408,886.03-613,328.86-109,358.83

Finding the Fourth Proportional to 408,886.03, 613,328.86 and 109,358.83

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Solution

The fourth proportional to 408,886.03, 613,328.86 and 109,358.83 is: 164,038.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,886.03 : 613,328.86 = 109,358.83 : x
  2. Step 2: Convert to fraction form
    408,886.03/613,328.86 = 109,358.83/x
  3. Step 3: Cross multiply
    408,886.03x = 613,328.86 × 109,358.83
  4. Step 4: Simplify right side
    408,886.03x = 67,072,926,534.83
  5. Step 5: Solve for x
    x = 67,072,926,534.83/408,886.03
  6. Step 6: Final answer
    x = 164,038.20

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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.