Home / 313,328.20-470,138.10-163,737.40

Finding the Fourth Proportional to 313,328.20, 470,138.10 and 163,737.40

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Solution

The fourth proportional to 313,328.20, 470,138.10 and 163,737.40 is: 245,682.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,328.20 : 470,138.10 = 163,737.40 : x
  2. Step 2: Convert to fraction form
    313,328.20/470,138.10 = 163,737.40/x
  3. Step 3: Cross multiply
    313,328.20x = 470,138.10 × 163,737.40
  4. Step 4: Simplify right side
    313,328.20x = 76,979,190,134.94
  5. Step 5: Solve for x
    x = 76,979,190,134.94/313,328.20
  6. Step 6: Final answer
    x = 245,682.29

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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.