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Finding the Fourth Proportional to 349,342.16, 523,574.76 and 149,427.56

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Solution

The fourth proportional to 349,342.16, 523,574.76 and 149,427.56 is: 223,953.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    349,342.16 : 523,574.76 = 149,427.56 : x
  2. Step 2: Convert to fraction form
    349,342.16/523,574.76 = 149,427.56/x
  3. Step 3: Cross multiply
    349,342.16x = 523,574.76 × 149,427.56
  4. Step 4: Simplify right side
    349,342.16x = 78,236,498,864.39
  5. Step 5: Solve for x
    x = 78,236,498,864.39/349,342.16
  6. Step 6: Final answer
    x = 223,953.78

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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.