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Finding the Fourth Proportional to 526.16, 726.36 and 330.32

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Solution

The fourth proportional to 526.16, 726.36 and 330.32 is: 456.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    526.16 : 726.36 = 330.32 : x
  2. Step 2: Convert to fraction form
    526.16/726.36 = 330.32/x
  3. Step 3: Cross multiply
    526.16x = 726.36 × 330.32
  4. Step 4: Simplify right side
    526.16x = 239,931.24
  5. Step 5: Solve for x
    x = 239,931.24/526.16
  6. Step 6: Final answer
    x = 456.00

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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.