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Finding the Fourth Proportional to 374,691.56, 517,043.08 and 211,339.06

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Solution

The fourth proportional to 374,691.56, 517,043.08 and 211,339.06 is: 291,630.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,691.56 : 517,043.08 = 211,339.06 : x
  2. Step 2: Convert to fraction form
    374,691.56/517,043.08 = 211,339.06/x
  3. Step 3: Cross multiply
    374,691.56x = 517,043.08 × 211,339.06
  4. Step 4: Simplify right side
    374,691.56x = 109,271,397,478.27
  5. Step 5: Solve for x
    x = 109,271,397,478.27/374,691.56
  6. Step 6: Final answer
    x = 291,630.27

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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.