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Finding the Fourth Proportional to 555.32, 828.22 and 526.16

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Solution

The fourth proportional to 555.32, 828.22 and 526.16 is: 784.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    555.32 : 828.22 = 526.16 : x
  2. Step 2: Convert to fraction form
    555.32/828.22 = 526.16/x
  3. Step 3: Cross multiply
    555.32x = 828.22 × 526.16
  4. Step 4: Simplify right side
    555.32x = 435,776.24
  5. Step 5: Solve for x
    x = 435,776.24/555.32
  6. Step 6: Final answer
    x = 784.73

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.