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Finding the Fourth Proportional to 274,889.84, 379,338.80 and 152,377.07

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Solution

The fourth proportional to 274,889.84, 379,338.80 and 152,377.07 is: 210,275.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,889.84 : 379,338.80 = 152,377.07 : x
  2. Step 2: Convert to fraction form
    274,889.84/379,338.80 = 152,377.07/x
  3. Step 3: Cross multiply
    274,889.84x = 379,338.80 × 152,377.07
  4. Step 4: Simplify right side
    274,889.84x = 57,802,532,222.74
  5. Step 5: Solve for x
    x = 57,802,532,222.74/274,889.84
  6. Step 6: Final answer
    x = 210,275.26

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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.