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Finding the Fourth Proportional to 366,918.20, 549,721.20 and 310,493.60

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Solution

The fourth proportional to 366,918.20, 549,721.20 and 310,493.60 is: 465,185.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,918.20 : 549,721.20 = 310,493.60 : x
  2. Step 2: Convert to fraction form
    366,918.20/549,721.20 = 310,493.60/x
  3. Step 3: Cross multiply
    366,918.20x = 549,721.20 × 310,493.60
  4. Step 4: Simplify right side
    366,918.20x = 170,684,914,384.32
  5. Step 5: Solve for x
    x = 170,684,914,384.32/366,918.20
  6. Step 6: Final answer
    x = 465,185.19

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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.