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Finding the Fourth Proportional to 343,772.58, 474,399 and 190,801.78

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Solution

The fourth proportional to 343,772.58, 474,399 and 190,801.78 is: 263,302.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,772.58 : 474,399 = 190,801.78 : x
  2. Step 2: Convert to fraction form
    343,772.58/474,399 = 190,801.78/x
  3. Step 3: Cross multiply
    343,772.58x = 474,399 × 190,801.78
  4. Step 4: Simplify right side
    343,772.58x = 90,516,173,630.22
  5. Step 5: Solve for x
    x = 90,516,173,630.22/343,772.58
  6. Step 6: Final answer
    x = 263,302.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.