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Finding the Fourth Proportional to 525,014.80, 787,637.40 and 169,968.40

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Solution

The fourth proportional to 525,014.80, 787,637.40 and 169,968.40 is: 254,989.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,014.80 : 787,637.40 = 169,968.40 : x
  2. Step 2: Convert to fraction form
    525,014.80/787,637.40 = 169,968.40/x
  3. Step 3: Cross multiply
    525,014.80x = 787,637.40 × 169,968.40
  4. Step 4: Simplify right side
    525,014.80x = 133,873,468,658.16
  5. Step 5: Solve for x
    x = 133,873,468,658.16/525,014.80
  6. Step 6: Final answer
    x = 254,989.89

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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.