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Finding the Fourth Proportional to 366,319.80, 549,479.70 and 206,231.40

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Solution

The fourth proportional to 366,319.80, 549,479.70 and 206,231.40 is: 309,347.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,319.80 : 549,479.70 = 206,231.40 : x
  2. Step 2: Convert to fraction form
    366,319.80/549,479.70 = 206,231.40/x
  3. Step 3: Cross multiply
    366,319.80x = 549,479.70 × 206,231.40
  4. Step 4: Simplify right side
    366,319.80x = 113,319,967,802.58
  5. Step 5: Solve for x
    x = 113,319,967,802.58/366,319.80
  6. Step 6: Final answer
    x = 309,347.10

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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.