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Finding the Fourth Proportional to 525,441.90, 788,273.64 and 170,428.35

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Solution

The fourth proportional to 525,441.90, 788,273.64 and 170,428.35 is: 255,678.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,441.90 : 788,273.64 = 170,428.35 : x
  2. Step 2: Convert to fraction form
    525,441.90/788,273.64 = 170,428.35/x
  3. Step 3: Cross multiply
    525,441.90x = 788,273.64 × 170,428.35
  4. Step 4: Simplify right side
    525,441.90x = 134,344,175,813.69
  5. Step 5: Solve for x
    x = 134,344,175,813.69/525,441.90
  6. Step 6: Final answer
    x = 255,678.46

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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.