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Finding the Fourth Proportional to 525,402.32, 788,214.20 and 170,388.66

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Solution

The fourth proportional to 525,402.32, 788,214.20 and 170,388.66 is: 255,618.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,402.32 : 788,214.20 = 170,388.66 : x
  2. Step 2: Convert to fraction form
    525,402.32/788,214.20 = 170,388.66/x
  3. Step 3: Cross multiply
    525,402.32x = 788,214.20 × 170,388.66
  4. Step 4: Simplify right side
    525,402.32x = 134,302,761,330.97
  5. Step 5: Solve for x
    x = 134,302,761,330.97/525,402.32
  6. Step 6: Final answer
    x = 255,618.90

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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.