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Finding the Fourth Proportional to 372,705.96, 514,337.40 and 211,561.32

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Solution

The fourth proportional to 372,705.96, 514,337.40 and 211,561.32 is: 291,956.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,705.96 : 514,337.40 = 211,561.32 : x
  2. Step 2: Convert to fraction form
    372,705.96/514,337.40 = 211,561.32/x
  3. Step 3: Cross multiply
    372,705.96x = 514,337.40 × 211,561.32
  4. Step 4: Simplify right side
    372,705.96x = 108,813,899,269.37
  5. Step 5: Solve for x
    x = 108,813,899,269.37/372,705.96
  6. Step 6: Final answer
    x = 291,956.42

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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.