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Finding the Fourth Proportional to 345,670.62, 520,373.36 and 310,910.91

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Solution

The fourth proportional to 345,670.62, 520,373.36 and 310,910.91 is: 468,046.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,670.62 : 520,373.36 = 310,910.91 : x
  2. Step 2: Convert to fraction form
    345,670.62/520,373.36 = 310,910.91/x
  3. Step 3: Cross multiply
    345,670.62x = 520,373.36 × 310,910.91
  4. Step 4: Simplify right side
    345,670.62x = 161,789,753,342.80
  5. Step 5: Solve for x
    x = 161,789,753,342.80/345,670.62
  6. Step 6: Final answer
    x = 468,046.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.