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Finding the Fourth Proportional to 507.89, 700.88 and 298.01

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Solution

The fourth proportional to 507.89, 700.88 and 298.01 is: 411.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    507.89 : 700.88 = 298.01 : x
  2. Step 2: Convert to fraction form
    507.89/700.88 = 298.01/x
  3. Step 3: Cross multiply
    507.89x = 700.88 × 298.01
  4. Step 4: Simplify right side
    507.89x = 208,869.51
  5. Step 5: Solve for x
    x = 208,869.51/507.89
  6. Step 6: Final answer
    x = 411.25

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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.