Home / 313,637.45-432,817.35-170,398.67

Finding the Fourth Proportional to 313,637.45, 432,817.35 and 170,398.67

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Solution

The fourth proportional to 313,637.45, 432,817.35 and 170,398.67 is: 235,148.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,637.45 : 432,817.35 = 170,398.67 : x
  2. Step 2: Convert to fraction form
    313,637.45/432,817.35 = 170,398.67/x
  3. Step 3: Cross multiply
    313,637.45x = 432,817.35 × 170,398.67
  4. Step 4: Simplify right side
    313,637.45x = 73,751,500,792.92
  5. Step 5: Solve for x
    x = 73,751,500,792.92/313,637.45
  6. Step 6: Final answer
    x = 235,148.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.