Home / 771,231.85-1,156,835.39-210,266.35

Finding the Fourth Proportional to 771,231.85, 1,156,835.39 and 210,266.35

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Solution

The fourth proportional to 771,231.85, 1,156,835.39 and 210,266.35 is: 315,396.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    771,231.85 : 1,156,835.39 = 210,266.35 : x
  2. Step 2: Convert to fraction form
    771,231.85/1,156,835.39 = 210,266.35/x
  3. Step 3: Cross multiply
    771,231.85x = 1,156,835.39 × 210,266.35
  4. Step 4: Simplify right side
    771,231.85x = 243,243,551,062.71
  5. Step 5: Solve for x
    x = 243,243,551,062.71/771,231.85
  6. Step 6: Final answer
    x = 315,396.14

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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.