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Finding the Fourth Proportional to 366,880.31, 550,142.70 and 215,118.89

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Solution

The fourth proportional to 366,880.31, 550,142.70 and 215,118.89 is: 322,574.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,880.31 : 550,142.70 = 215,118.89 : x
  2. Step 2: Convert to fraction form
    366,880.31/550,142.70 = 215,118.89/x
  3. Step 3: Cross multiply
    366,880.31x = 550,142.70 × 215,118.89
  4. Step 4: Simplify right side
    366,880.31x = 118,346,084,214.89
  5. Step 5: Solve for x
    x = 118,346,084,214.89/366,880.31
  6. Step 6: Final answer
    x = 322,574.10

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1.5x scale

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.