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Finding the Fourth Proportional to 366,895.80, 549,663.30 and 208,654.20

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Solution

The fourth proportional to 366,895.80, 549,663.30 and 208,654.20 is: 312,594.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,895.80 : 549,663.30 = 208,654.20 : x
  2. Step 2: Convert to fraction form
    366,895.80/549,663.30 = 208,654.20/x
  3. Step 3: Cross multiply
    366,895.80x = 549,663.30 × 208,654.20
  4. Step 4: Simplify right side
    366,895.80x = 114,689,556,130.86
  5. Step 5: Solve for x
    x = 114,689,556,130.86/366,895.80
  6. Step 6: Final answer
    x = 312,594.36

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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.