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Finding the Fourth Proportional to 313,274.84, 432,318.19 and 170,034.89

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Solution

The fourth proportional to 313,274.84, 432,318.19 and 170,034.89 is: 234,647.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,274.84 : 432,318.19 = 170,034.89 : x
  2. Step 2: Convert to fraction form
    313,274.84/432,318.19 = 170,034.89/x
  3. Step 3: Cross multiply
    313,274.84x = 432,318.19 × 170,034.89
  4. Step 4: Simplify right side
    313,274.84x = 73,509,173,294.97
  5. Step 5: Solve for x
    x = 73,509,173,294.97/313,274.84
  6. Step 6: Final answer
    x = 234,647.55

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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.