Home / 212,466.40-318,699.60-64,703.20

Finding the Fourth Proportional to 212,466.40, 318,699.60 and 64,703.20

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Solution

The fourth proportional to 212,466.40, 318,699.60 and 64,703.20 is: 97,054.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,466.40 : 318,699.60 = 64,703.20 : x
  2. Step 2: Convert to fraction form
    212,466.40/318,699.60 = 64,703.20/x
  3. Step 3: Cross multiply
    212,466.40x = 318,699.60 × 64,703.20
  4. Step 4: Simplify right side
    212,466.40x = 20,620,883,958.72
  5. Step 5: Solve for x
    x = 20,620,883,958.72/212,466.40
  6. Step 6: Final answer
    x = 97,054.80

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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.