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Finding the Fourth Proportional to 340,422.51, 469,783.76 and 189,524.91

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Solution

The fourth proportional to 340,422.51, 469,783.76 and 189,524.91 is: 261,544.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,422.51 : 469,783.76 = 189,524.91 : x
  2. Step 2: Convert to fraction form
    340,422.51/469,783.76 = 189,524.91/x
  3. Step 3: Cross multiply
    340,422.51x = 469,783.76 × 189,524.91
  4. Step 4: Simplify right side
    340,422.51x = 89,035,723,885.84
  5. Step 5: Solve for x
    x = 89,035,723,885.84/340,422.51
  6. Step 6: Final answer
    x = 261,544.76

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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.