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Finding the Fourth Proportional to 525,433.92, 788,261.64 and 170,420.32

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Solution

The fourth proportional to 525,433.92, 788,261.64 and 170,420.32 is: 255,666.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,433.92 : 788,261.64 = 170,420.32 : x
  2. Step 2: Convert to fraction form
    525,433.92/788,261.64 = 170,420.32/x
  3. Step 3: Cross multiply
    525,433.92x = 788,261.64 × 170,420.32
  4. Step 4: Simplify right side
    525,433.92x = 134,335,800,932.53
  5. Step 5: Solve for x
    x = 134,335,800,932.53/525,433.92
  6. Step 6: Final answer
    x = 255,666.40

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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.