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Finding the Fourth Proportional to 341,698.38, 512,588.58 and 142,153.77

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Solution

The fourth proportional to 341,698.38, 512,588.58 and 142,153.77 is: 213,247.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,698.38 : 512,588.58 = 142,153.77 : x
  2. Step 2: Convert to fraction form
    341,698.38/512,588.58 = 142,153.77/x
  3. Step 3: Cross multiply
    341,698.38x = 512,588.58 × 142,153.77
  4. Step 4: Simplify right side
    341,698.38x = 72,866,399,105.95
  5. Step 5: Solve for x
    x = 72,866,399,105.95/341,698.38
  6. Step 6: Final answer
    x = 213,247.72

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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.