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Finding the Fourth Proportional to 343,767.64, 474,427.92 and 190,820.20

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Solution

The fourth proportional to 343,767.64, 474,427.92 and 190,820.20 is: 263,347.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,767.64 : 474,427.92 = 190,820.20 : x
  2. Step 2: Convert to fraction form
    343,767.64/474,427.92 = 190,820.20/x
  3. Step 3: Cross multiply
    343,767.64x = 474,427.92 × 190,820.20
  4. Step 4: Simplify right side
    343,767.64x = 90,530,430,579.98
  5. Step 5: Solve for x
    x = 90,530,430,579.98/343,767.64
  6. Step 6: Final answer
    x = 263,347.74

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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.