Home / 212,467.40-318,701.10-64,704.20

Finding the Fourth Proportional to 212,467.40, 318,701.10 and 64,704.20

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Solution

The fourth proportional to 212,467.40, 318,701.10 and 64,704.20 is: 97,056.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,467.40 : 318,701.10 = 64,704.20 : x
  2. Step 2: Convert to fraction form
    212,467.40/318,701.10 = 64,704.20/x
  3. Step 3: Cross multiply
    212,467.40x = 318,701.10 × 64,704.20
  4. Step 4: Simplify right side
    212,467.40x = 20,621,299,714.62
  5. Step 5: Solve for x
    x = 20,621,299,714.62/212,467.40
  6. Step 6: Final answer
    x = 97,056.30

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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.