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Finding the Fourth Proportional to 349,513.80, 524,664.90 and 231,415.80

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Solution

The fourth proportional to 349,513.80, 524,664.90 and 231,415.80 is: 347,384.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    349,513.80 : 524,664.90 = 231,415.80 : x
  2. Step 2: Convert to fraction form
    349,513.80/524,664.90 = 231,415.80/x
  3. Step 3: Cross multiply
    349,513.80x = 524,664.90 × 231,415.80
  4. Step 4: Simplify right side
    349,513.80x = 121,415,747,565.42
  5. Step 5: Solve for x
    x = 121,415,747,565.42/349,513.80
  6. Step 6: Final answer
    x = 347,384.70

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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.