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Finding the Fourth Proportional to 374,579.72, 516,970.58 and 211,269.74

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Solution

The fourth proportional to 374,579.72, 516,970.58 and 211,269.74 is: 291,580.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,579.72 : 516,970.58 = 211,269.74 : x
  2. Step 2: Convert to fraction form
    374,579.72/516,970.58 = 211,269.74/x
  3. Step 3: Cross multiply
    374,579.72x = 516,970.58 × 211,269.74
  4. Step 4: Simplify right side
    374,579.72x = 109,220,241,339.18
  5. Step 5: Solve for x
    x = 109,220,241,339.18/374,579.72
  6. Step 6: Final answer
    x = 291,580.77

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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.