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Finding the Fourth Proportional to 525,204.27, 787,641.16 and 170,135.91

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Solution

The fourth proportional to 525,204.27, 787,641.16 and 170,135.91 is: 255,150.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,204.27 : 787,641.16 = 170,135.91 : x
  2. Step 2: Convert to fraction form
    525,204.27/787,641.16 = 170,135.91/x
  3. Step 3: Cross multiply
    525,204.27x = 787,641.16 × 170,135.91
  4. Step 4: Simplify right side
    525,204.27x = 134,006,045,510.06
  5. Step 5: Solve for x
    x = 134,006,045,510.06/525,204.27
  6. Step 6: Final answer
    x = 255,150.34

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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.