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Finding the Fourth Proportional to 313,633.95, 432,812.52 and 170,395.17

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Solution

The fourth proportional to 313,633.95, 432,812.52 and 170,395.17 is: 235,144.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,633.95 : 432,812.52 = 170,395.17 : x
  2. Step 2: Convert to fraction form
    313,633.95/432,812.52 = 170,395.17/x
  3. Step 3: Cross multiply
    313,633.95x = 432,812.52 × 170,395.17
  4. Step 4: Simplify right side
    313,633.95x = 73,749,162,923.53
  5. Step 5: Solve for x
    x = 73,749,162,923.53/313,633.95
  6. Step 6: Final answer
    x = 235,144.07

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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.