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Finding the Fourth Proportional to 279,663.42, 385,933.54 and 152,339

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Solution

The fourth proportional to 279,663.42, 385,933.54 and 152,339 is: 210,226.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,663.42 : 385,933.54 = 152,339 : x
  2. Step 2: Convert to fraction form
    279,663.42/385,933.54 = 152,339/x
  3. Step 3: Cross multiply
    279,663.42x = 385,933.54 × 152,339
  4. Step 4: Simplify right side
    279,663.42x = 58,792,729,550.06
  5. Step 5: Solve for x
    x = 58,792,729,550.06/279,663.42
  6. Step 6: Final answer
    x = 210,226.74

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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.