Home / 525,129.80-787,913.40-170,252.60

Finding the Fourth Proportional to 525,129.80, 787,913.40 and 170,252.60

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Solution

The fourth proportional to 525,129.80, 787,913.40 and 170,252.60 is: 255,449.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,129.80 : 787,913.40 = 170,252.60 : x
  2. Step 2: Convert to fraction form
    525,129.80/787,913.40 = 170,252.60/x
  3. Step 3: Cross multiply
    525,129.80x = 787,913.40 × 170,252.60
  4. Step 4: Simplify right side
    525,129.80x = 134,144,304,924.84
  5. Step 5: Solve for x
    x = 134,144,304,924.84/525,129.80
  6. Step 6: Final answer
    x = 255,449.80

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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.