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Finding the Fourth Proportional to 341,915.64, 512,415.01 and 266,105.72

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Solution

The fourth proportional to 341,915.64, 512,415.01 and 266,105.72 is: 398,801.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,915.64 : 512,415.01 = 266,105.72 : x
  2. Step 2: Convert to fraction form
    341,915.64/512,415.01 = 266,105.72/x
  3. Step 3: Cross multiply
    341,915.64x = 512,415.01 × 266,105.72
  4. Step 4: Simplify right side
    341,915.64x = 136,356,561,947.52
  5. Step 5: Solve for x
    x = 136,356,561,947.52/341,915.64
  6. Step 6: Final answer
    x = 398,801.77

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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.