Home / 513,215.20-769,749.90-176,271.40

Finding the Fourth Proportional to 513,215.20, 769,749.90 and 176,271.40

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Solution

The fourth proportional to 513,215.20, 769,749.90 and 176,271.40 is: 264,382.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    513,215.20 : 769,749.90 = 176,271.40 : x
  2. Step 2: Convert to fraction form
    513,215.20/769,749.90 = 176,271.40/x
  3. Step 3: Cross multiply
    513,215.20x = 769,749.90 × 176,271.40
  4. Step 4: Simplify right side
    513,215.20x = 135,684,892,522.86
  5. Step 5: Solve for x
    x = 135,684,892,522.86/513,215.20
  6. Step 6: Final answer
    x = 264,382.06

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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.