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Finding the Fourth Proportional to 525,438.76, 788,268.96 and 170,425.21

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Solution

The fourth proportional to 525,438.76, 788,268.96 and 170,425.21 is: 255,673.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,438.76 : 788,268.96 = 170,425.21 : x
  2. Step 2: Convert to fraction form
    525,438.76/788,268.96 = 170,425.21/x
  3. Step 3: Cross multiply
    525,438.76x = 788,268.96 × 170,425.21
  4. Step 4: Simplify right side
    525,438.76x = 134,340,903,044.48
  5. Step 5: Solve for x
    x = 134,340,903,044.48/525,438.76
  6. Step 6: Final answer
    x = 255,673.76

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1.5x scale

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.