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Finding the Fourth Proportional to 525,016.80, 787,622.40 and 170,042.40

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Solution

The fourth proportional to 525,016.80, 787,622.40 and 170,042.40 is: 255,095.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,016.80 : 787,622.40 = 170,042.40 : x
  2. Step 2: Convert to fraction form
    525,016.80/787,622.40 = 170,042.40/x
  3. Step 3: Cross multiply
    525,016.80x = 787,622.40 × 170,042.40
  4. Step 4: Simplify right side
    525,016.80x = 133,929,203,189.76
  5. Step 5: Solve for x
    x = 133,929,203,189.76/525,016.80
  6. Step 6: Final answer
    x = 255,095.08

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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.