Home / 366,918.85-550,378.28-278,345.35

Finding the Fourth Proportional to 366,918.85, 550,378.28 and 278,345.35

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Solution

The fourth proportional to 366,918.85, 550,378.28 and 278,345.35 is: 417,518.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,918.85 : 550,378.28 = 278,345.35 : x
  2. Step 2: Convert to fraction form
    366,918.85/550,378.28 = 278,345.35/x
  3. Step 3: Cross multiply
    366,918.85x = 550,378.28 × 278,345.35
  4. Step 4: Simplify right side
    366,918.85x = 153,195,234,979.00
  5. Step 5: Solve for x
    x = 153,195,234,979.00/366,918.85
  6. Step 6: Final answer
    x = 417,518.03

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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.