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Finding the Fourth Proportional to 571,301.72, 857,064.68 and 211,475.72

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Solution

The fourth proportional to 571,301.72, 857,064.68 and 211,475.72 is: 317,255.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,301.72 : 857,064.68 = 211,475.72 : x
  2. Step 2: Convert to fraction form
    571,301.72/857,064.68 = 211,475.72/x
  3. Step 3: Cross multiply
    571,301.72x = 857,064.68 × 211,475.72
  4. Step 4: Simplify right side
    571,301.72x = 181,248,364,946.87
  5. Step 5: Solve for x
    x = 181,248,364,946.87/571,301.72
  6. Step 6: Final answer
    x = 317,255.06

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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.