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Finding the Fourth Proportional to 394,909.60, 592,364.40 and 235,477.30

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Solution

The fourth proportional to 394,909.60, 592,364.40 and 235,477.30 is: 353,215.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,909.60 : 592,364.40 = 235,477.30 : x
  2. Step 2: Convert to fraction form
    394,909.60/592,364.40 = 235,477.30/x
  3. Step 3: Cross multiply
    394,909.60x = 592,364.40 × 235,477.30
  4. Step 4: Simplify right side
    394,909.60x = 139,488,369,528.12
  5. Step 5: Solve for x
    x = 139,488,369,528.12/394,909.60
  6. Step 6: Final answer
    x = 353,215.95

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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.