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Finding the Fourth Proportional to 349,923, 524,962.26 and 128,307

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Solution

The fourth proportional to 349,923, 524,962.26 and 128,307 is: 192,489.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    349,923 : 524,962.26 = 128,307 : x
  2. Step 2: Convert to fraction form
    349,923/524,962.26 = 128,307/x
  3. Step 3: Cross multiply
    349,923x = 524,962.26 × 128,307
  4. Step 4: Simplify right side
    349,923x = 67,356,332,693.82
  5. Step 5: Solve for x
    x = 67,356,332,693.82/349,923
  6. Step 6: Final answer
    x = 192,489.01

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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.