Home / 313,976.72-470,981.40-103,631.06

Finding the Fourth Proportional to 313,976.72, 470,981.40 and 103,631.06

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Solution

The fourth proportional to 313,976.72, 470,981.40 and 103,631.06 is: 155,451.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,976.72 : 470,981.40 = 103,631.06 : x
  2. Step 2: Convert to fraction form
    313,976.72/470,981.40 = 103,631.06/x
  3. Step 3: Cross multiply
    313,976.72x = 470,981.40 × 103,631.06
  4. Step 4: Simplify right side
    313,976.72x = 48,808,301,722.28
  5. Step 5: Solve for x
    x = 48,808,301,722.28/313,976.72
  6. Step 6: Final answer
    x = 155,451.98

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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.