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Finding the Fourth Proportional to 345,995.72, 477,392.61 and 210,026.30

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Solution

The fourth proportional to 345,995.72, 477,392.61 and 210,026.30 is: 289,786.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,995.72 : 477,392.61 = 210,026.30 : x
  2. Step 2: Convert to fraction form
    345,995.72/477,392.61 = 210,026.30/x
  3. Step 3: Cross multiply
    345,995.72x = 477,392.61 × 210,026.30
  4. Step 4: Simplify right side
    345,995.72x = 100,265,003,525.64
  5. Step 5: Solve for x
    x = 100,265,003,525.64/345,995.72
  6. Step 6: Final answer
    x = 289,786.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.