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Finding the Fourth Proportional to 571,699.35, 857,271.18 and 172,265.67

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Solution

The fourth proportional to 571,699.35, 857,271.18 and 172,265.67 is: 258,314.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,699.35 : 857,271.18 = 172,265.67 : x
  2. Step 2: Convert to fraction form
    571,699.35/857,271.18 = 172,265.67/x
  3. Step 3: Cross multiply
    571,699.35x = 857,271.18 × 172,265.67
  4. Step 4: Simplify right side
    571,699.35x = 147,678,394,194.39
  5. Step 5: Solve for x
    x = 147,678,394,194.39/571,699.35
  6. Step 6: Final answer
    x = 258,314.78

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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.