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Finding the Fourth Proportional to 525,912.56, 788,369.52 and 170,678.12

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Solution

The fourth proportional to 525,912.56, 788,369.52 and 170,678.12 is: 255,855.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,912.56 : 788,369.52 = 170,678.12 : x
  2. Step 2: Convert to fraction form
    525,912.56/788,369.52 = 170,678.12/x
  3. Step 3: Cross multiply
    525,912.56x = 788,369.52 × 170,678.12
  4. Step 4: Simplify right side
    525,912.56x = 134,557,427,538.90
  5. Step 5: Solve for x
    x = 134,557,427,538.90/525,912.56
  6. Step 6: Final answer
    x = 255,855.13

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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.