Home / 514,311.20-771,469.36-210,871.10

Finding the Fourth Proportional to 514,311.20, 771,469.36 and 210,871.10

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Solution

The fourth proportional to 514,311.20, 771,469.36 and 210,871.10 is: 316,307.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    514,311.20 : 771,469.36 = 210,871.10 : x
  2. Step 2: Convert to fraction form
    514,311.20/771,469.36 = 210,871.10/x
  3. Step 3: Cross multiply
    514,311.20x = 771,469.36 × 210,871.10
  4. Step 4: Simplify right side
    514,311.20x = 162,680,595,147.14
  5. Step 5: Solve for x
    x = 162,680,595,147.14/514,311.20
  6. Step 6: Final answer
    x = 316,307.70

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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.