Home / 571,688.85-857,255.43-172,255.17

Finding the Fourth Proportional to 571,688.85, 857,255.43 and 172,255.17

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Solution

The fourth proportional to 571,688.85, 857,255.43 and 172,255.17 is: 258,299.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,688.85 : 857,255.43 = 172,255.17 : x
  2. Step 2: Convert to fraction form
    571,688.85/857,255.43 = 172,255.17/x
  3. Step 3: Cross multiply
    571,688.85x = 857,255.43 × 172,255.17
  4. Step 4: Simplify right side
    571,688.85x = 147,666,679,828.07
  5. Step 5: Solve for x
    x = 147,666,679,828.07/571,688.85
  6. Step 6: Final answer
    x = 258,299.04

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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.