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Finding the Fourth Proportional to 380,677.91, 525,335.52 and 227,722.55

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Solution

The fourth proportional to 380,677.91, 525,335.52 and 227,722.55 is: 314,257.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,677.91 : 525,335.52 = 227,722.55 : x
  2. Step 2: Convert to fraction form
    380,677.91/525,335.52 = 227,722.55/x
  3. Step 3: Cross multiply
    380,677.91x = 525,335.52 × 227,722.55
  4. Step 4: Simplify right side
    380,677.91x = 119,630,742,709.35
  5. Step 5: Solve for x
    x = 119,630,742,709.35/380,677.91
  6. Step 6: Final answer
    x = 314,257.12

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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.