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Finding the Fourth Proportional to 570.65, 856.07 and 310.64

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Solution

The fourth proportional to 570.65, 856.07 and 310.64 is: 466.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    570.65 : 856.07 = 310.64 : x
  2. Step 2: Convert to fraction form
    570.65/856.07 = 310.64/x
  3. Step 3: Cross multiply
    570.65x = 856.07 × 310.64
  4. Step 4: Simplify right side
    570.65x = 265,924.92
  5. Step 5: Solve for x
    x = 265,924.92/570.65
  6. Step 6: Final answer
    x = 466.01

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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.