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Finding the Fourth Proportional to 356,697.72, 492,262.92 and 211,589.52

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Solution

The fourth proportional to 356,697.72, 492,262.92 and 211,589.52 is: 292,005.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,697.72 : 492,262.92 = 211,589.52 : x
  2. Step 2: Convert to fraction form
    356,697.72/492,262.92 = 211,589.52/x
  3. Step 3: Cross multiply
    356,697.72x = 492,262.92 × 211,589.52
  4. Step 4: Simplify right side
    356,697.72x = 104,157,674,956.60
  5. Step 5: Solve for x
    x = 104,157,674,956.60/356,697.72
  6. Step 6: Final answer
    x = 292,005.44

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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.