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Finding the Fourth Proportional to 366,903.80, 549,675.30 and 208,662.20

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Solution

The fourth proportional to 366,903.80, 549,675.30 and 208,662.20 is: 312,606.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,903.80 : 549,675.30 = 208,662.20 : x
  2. Step 2: Convert to fraction form
    366,903.80/549,675.30 = 208,662.20/x
  3. Step 3: Cross multiply
    366,903.80x = 549,675.30 × 208,662.20
  4. Step 4: Simplify right side
    366,903.80x = 114,696,457,383.66
  5. Step 5: Solve for x
    x = 114,696,457,383.66/366,903.80
  6. Step 6: Final answer
    x = 312,606.35

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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.