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Finding the Fourth Proportional to 571,228.90, 856,670.64 and 171,763.63

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Solution

The fourth proportional to 571,228.90, 856,670.64 and 171,763.63 is: 257,593.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,228.90 : 856,670.64 = 171,763.63 : x
  2. Step 2: Convert to fraction form
    571,228.90/856,670.64 = 171,763.63/x
  3. Step 3: Cross multiply
    571,228.90x = 856,670.64 × 171,763.63
  4. Step 4: Simplify right side
    571,228.90x = 147,144,857,982.01
  5. Step 5: Solve for x
    x = 147,144,857,982.01/571,228.90
  6. Step 6: Final answer
    x = 257,593.51

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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.