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Finding the Fourth Proportional to 313,622.80, 432,798.73 and 170,381.59

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Solution

The fourth proportional to 313,622.80, 432,798.73 and 170,381.59 is: 235,126.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,622.80 : 432,798.73 = 170,381.59 : x
  2. Step 2: Convert to fraction form
    313,622.80/432,798.73 = 170,381.59/x
  3. Step 3: Cross multiply
    313,622.80x = 432,798.73 × 170,381.59
  4. Step 4: Simplify right side
    313,622.80x = 73,740,935,767.38
  5. Step 5: Solve for x
    x = 73,740,935,767.38/313,622.80
  6. Step 6: Final answer
    x = 235,126.20

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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.