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Finding the Fourth Proportional to 472,264.60, 708,221.88 and 191,687.08

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Solution

The fourth proportional to 472,264.60, 708,221.88 and 191,687.08 is: 287,459.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,264.60 : 708,221.88 = 191,687.08 : x
  2. Step 2: Convert to fraction form
    472,264.60/708,221.88 = 191,687.08/x
  3. Step 3: Cross multiply
    472,264.60x = 708,221.88 × 191,687.08
  4. Step 4: Simplify right side
    472,264.60x = 135,756,984,169.31
  5. Step 5: Solve for x
    x = 135,756,984,169.31/472,264.60
  6. Step 6: Final answer
    x = 287,459.58

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.