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Finding the Fourth Proportional to 571,343.65, 856,746.86 and 211,265.71

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Solution

The fourth proportional to 571,343.65, 856,746.86 and 211,265.71 is: 316,799.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,343.65 : 856,746.86 = 211,265.71 : x
  2. Step 2: Convert to fraction form
    571,343.65/856,746.86 = 211,265.71/x
  3. Step 3: Cross multiply
    571,343.65x = 856,746.86 × 211,265.71
  4. Step 4: Simplify right side
    571,343.65x = 181,001,230,469.98
  5. Step 5: Solve for x
    x = 181,001,230,469.98/571,343.65
  6. Step 6: Final answer
    x = 316,799.24

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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.