Home / 313,540.27-432,686.81-170,302.70

Finding the Fourth Proportional to 313,540.27, 432,686.81 and 170,302.70

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Solution

The fourth proportional to 313,540.27, 432,686.81 and 170,302.70 is: 235,018.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,540.27 : 432,686.81 = 170,302.70 : x
  2. Step 2: Convert to fraction form
    313,540.27/432,686.81 = 170,302.70/x
  3. Step 3: Cross multiply
    313,540.27x = 432,686.81 × 170,302.70
  4. Step 4: Simplify right side
    313,540.27x = 73,687,731,997.39
  5. Step 5: Solve for x
    x = 73,687,731,997.39/313,540.27
  6. Step 6: Final answer
    x = 235,018.40

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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.