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Finding the Fourth Proportional to 279,437.94, 385,614.54 and 152,110.80

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Solution

The fourth proportional to 279,437.94, 385,614.54 and 152,110.80 is: 209,907.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,437.94 : 385,614.54 = 152,110.80 : x
  2. Step 2: Convert to fraction form
    279,437.94/385,614.54 = 152,110.80/x
  3. Step 3: Cross multiply
    279,437.94x = 385,614.54 × 152,110.80
  4. Step 4: Simplify right side
    279,437.94x = 58,656,136,171.03
  5. Step 5: Solve for x
    x = 58,656,136,171.03/279,437.94
  6. Step 6: Final answer
    x = 209,907.56

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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.