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Finding the Fourth Proportional to 525,978.34, 788,190.98 and 240,965.80

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Solution

The fourth proportional to 525,978.34, 788,190.98 and 240,965.80 is: 361,092.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,978.34 : 788,190.98 = 240,965.80 : x
  2. Step 2: Convert to fraction form
    525,978.34/788,190.98 = 240,965.80/x
  3. Step 3: Cross multiply
    525,978.34x = 788,190.98 × 240,965.80
  4. Step 4: Simplify right side
    525,978.34x = 189,927,070,048.48
  5. Step 5: Solve for x
    x = 189,927,070,048.48/525,978.34
  6. Step 6: Final answer
    x = 361,092.95

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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.