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Finding the Fourth Proportional to 366,968.80, 549,772.80 and 208,727.20

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Solution

The fourth proportional to 366,968.80, 549,772.80 and 208,727.20 is: 312,703.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,968.80 : 549,772.80 = 208,727.20 : x
  2. Step 2: Convert to fraction form
    366,968.80/549,772.80 = 208,727.20/x
  3. Step 3: Cross multiply
    366,968.80x = 549,772.80 × 208,727.20
  4. Step 4: Simplify right side
    366,968.80x = 114,752,537,180.16
  5. Step 5: Solve for x
    x = 114,752,537,180.16/366,968.80
  6. Step 6: Final answer
    x = 312,703.80

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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.