Home / 313,790.22-470,420.06-136,162.89

Finding the Fourth Proportional to 313,790.22, 470,420.06 and 136,162.89

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Solution

The fourth proportional to 313,790.22, 470,420.06 and 136,162.89 is: 204,129.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,790.22 : 470,420.06 = 136,162.89 : x
  2. Step 2: Convert to fraction form
    313,790.22/470,420.06 = 136,162.89/x
  3. Step 3: Cross multiply
    313,790.22x = 470,420.06 × 136,162.89
  4. Step 4: Simplify right side
    313,790.22x = 64,053,754,202.76
  5. Step 5: Solve for x
    x = 64,053,754,202.76/313,790.22
  6. Step 6: Final answer
    x = 204,129.22

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1.5x scale

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.