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Finding the Fourth Proportional to 211,800.02, 292,473.89 and 157,991.61

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Solution

The fourth proportional to 211,800.02, 292,473.89 and 157,991.61 is: 218,170.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,800.02 : 292,473.89 = 157,991.61 : x
  2. Step 2: Convert to fraction form
    211,800.02/292,473.89 = 157,991.61/x
  3. Step 3: Cross multiply
    211,800.02x = 292,473.89 × 157,991.61
  4. Step 4: Simplify right side
    211,800.02x = 46,208,421,663.35
  5. Step 5: Solve for x
    x = 46,208,421,663.35/211,800.02
  6. Step 6: Final answer
    x = 218,170.06

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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.