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Finding the Fourth Proportional to 366,485.91, 549,707.80 and 217,671.45

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Solution

The fourth proportional to 366,485.91, 549,707.80 and 217,671.45 is: 326,494.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,485.91 : 549,707.80 = 217,671.45 : x
  2. Step 2: Convert to fraction form
    366,485.91/549,707.80 = 217,671.45/x
  3. Step 3: Cross multiply
    366,485.91x = 549,707.80 × 217,671.45
  4. Step 4: Simplify right side
    366,485.91x = 119,655,693,902.31
  5. Step 5: Solve for x
    x = 119,655,693,902.31/366,485.91
  6. Step 6: Final answer
    x = 326,494.66

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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.