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Finding the Fourth Proportional to 507.56, 700.44 and 297.74

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Solution

The fourth proportional to 507.56, 700.44 and 297.74 is: 410.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    507.56 : 700.44 = 297.74 : x
  2. Step 2: Convert to fraction form
    507.56/700.44 = 297.74/x
  3. Step 3: Cross multiply
    507.56x = 700.44 × 297.74
  4. Step 4: Simplify right side
    507.56x = 208,547.52
  5. Step 5: Solve for x
    x = 208,547.52/507.56
  6. Step 6: Final answer
    x = 410.88

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.