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Finding the Fourth Proportional to 279,530.87, 385,750.96 and 152,206.16

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Solution

The fourth proportional to 279,530.87, 385,750.96 and 152,206.16 is: 210,043.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,530.87 : 385,750.96 = 152,206.16 : x
  2. Step 2: Convert to fraction form
    279,530.87/385,750.96 = 152,206.16/x
  3. Step 3: Cross multiply
    279,530.87x = 385,750.96 × 152,206.16
  4. Step 4: Simplify right side
    279,530.87x = 58,713,670,028.64
  5. Step 5: Solve for x
    x = 58,713,670,028.64/279,530.87
  6. Step 6: Final answer
    x = 210,043.60

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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.