Home / 345,747.04-518,620.64-109,108.16

Finding the Fourth Proportional to 345,747.04, 518,620.64 and 109,108.16

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Solution

The fourth proportional to 345,747.04, 518,620.64 and 109,108.16 is: 163,662.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,747.04 : 518,620.64 = 109,108.16 : x
  2. Step 2: Convert to fraction form
    345,747.04/518,620.64 = 109,108.16/x
  3. Step 3: Cross multiply
    345,747.04x = 518,620.64 × 109,108.16
  4. Step 4: Simplify right side
    345,747.04x = 56,585,743,768.42
  5. Step 5: Solve for x
    x = 56,585,743,768.42/345,747.04
  6. Step 6: Final answer
    x = 163,662.27

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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.