Home / 526.23-788.79-266.40

Finding the Fourth Proportional to 526.23, 788.79 and 266.40

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Solution

The fourth proportional to 526.23, 788.79 and 266.40 is: 399.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    526.23 : 788.79 = 266.40 : x
  2. Step 2: Convert to fraction form
    526.23/788.79 = 266.40/x
  3. Step 3: Cross multiply
    526.23x = 788.79 × 266.40
  4. Step 4: Simplify right side
    526.23x = 210,133.66
  5. Step 5: Solve for x
    x = 210,133.66/526.23
  6. Step 6: Final answer
    x = 399.32

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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.