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Finding the Fourth Proportional to 279,426.84, 385,593.40 and 152,094.84

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Solution

The fourth proportional to 279,426.84, 385,593.40 and 152,094.84 is: 209,882.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,426.84 : 385,593.40 = 152,094.84 : x
  2. Step 2: Convert to fraction form
    279,426.84/385,593.40 = 152,094.84/x
  3. Step 3: Cross multiply
    279,426.84x = 385,593.40 × 152,094.84
  4. Step 4: Simplify right side
    279,426.84x = 58,646,766,478.06
  5. Step 5: Solve for x
    x = 58,646,766,478.06/279,426.84
  6. Step 6: Final answer
    x = 209,882.37

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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.