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Finding the Fourth Proportional to 571,316.30, 856,705.85 and 211,238.37

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Solution

The fourth proportional to 571,316.30, 856,705.85 and 211,238.37 is: 316,758.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,316.30 : 856,705.85 = 211,238.37 : x
  2. Step 2: Convert to fraction form
    571,316.30/856,705.85 = 211,238.37/x
  3. Step 3: Cross multiply
    571,316.30x = 856,705.85 × 211,238.37
  4. Step 4: Simplify right side
    571,316.30x = 180,969,144,035.17
  5. Step 5: Solve for x
    x = 180,969,144,035.17/571,316.30
  6. Step 6: Final answer
    x = 316,758.24

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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.