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Finding the Fourth Proportional to 525,438.90, 788,269.14 and 170,425.35

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Solution

The fourth proportional to 525,438.90, 788,269.14 and 170,425.35 is: 255,673.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,438.90 : 788,269.14 = 170,425.35 : x
  2. Step 2: Convert to fraction form
    525,438.90/788,269.14 = 170,425.35/x
  3. Step 3: Cross multiply
    525,438.90x = 788,269.14 × 170,425.35
  4. Step 4: Simplify right side
    525,438.90x = 134,341,044,078.70
  5. Step 5: Solve for x
    x = 134,341,044,078.70/525,438.90
  6. Step 6: Final answer
    x = 255,673.96

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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.