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Finding the Fourth Proportional to 1,011.42, 1,516.21 and 362.00

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Solution

The fourth proportional to 1,011.42, 1,516.21 and 362.00 is: 542.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,011.42 : 1,516.21 = 362.00 : x
  2. Step 2: Convert to fraction form
    1,011.42/1,516.21 = 362.00/x
  3. Step 3: Cross multiply
    1,011.42x = 1,516.21 × 362.00
  4. Step 4: Simplify right side
    1,011.42x = 548,870.91
  5. Step 5: Solve for x
    x = 548,870.91/1,011.42
  6. Step 6: Final answer
    x = 542.67

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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.