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Finding the Fourth Proportional to 525,716.80, 788,143.20 and 226,427.20

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Solution

The fourth proportional to 525,716.80, 788,143.20 and 226,427.20 is: 339,454.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,716.80 : 788,143.20 = 226,427.20 : x
  2. Step 2: Convert to fraction form
    525,716.80/788,143.20 = 226,427.20/x
  3. Step 3: Cross multiply
    525,716.80x = 788,143.20 × 226,427.20
  4. Step 4: Simplify right side
    525,716.80x = 178,457,057,975.04
  5. Step 5: Solve for x
    x = 178,457,057,975.04/525,716.80
  6. Step 6: Final answer
    x = 339,454.74

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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.