Home / 525,087.40-787,631.10-170,137.30

Finding the Fourth Proportional to 525,087.40, 787,631.10 and 170,137.30

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Solution

The fourth proportional to 525,087.40, 787,631.10 and 170,137.30 is: 255,205.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,087.40 : 787,631.10 = 170,137.30 : x
  2. Step 2: Convert to fraction form
    525,087.40/787,631.10 = 170,137.30/x
  3. Step 3: Cross multiply
    525,087.40x = 787,631.10 × 170,137.30
  4. Step 4: Simplify right side
    525,087.40x = 134,005,428,750.03
  5. Step 5: Solve for x
    x = 134,005,428,750.03/525,087.40
  6. Step 6: Final answer
    x = 255,205.95

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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.