Home / 279,438.12-385,624.66-152,114.68

Finding the Fourth Proportional to 279,438.12, 385,624.66 and 152,114.68

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Solution

The fourth proportional to 279,438.12, 385,624.66 and 152,114.68 is: 209,918.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,438.12 : 385,624.66 = 152,114.68 : x
  2. Step 2: Convert to fraction form
    279,438.12/385,624.66 = 152,114.68/x
  3. Step 3: Cross multiply
    279,438.12x = 385,624.66 × 152,114.68
  4. Step 4: Simplify right side
    279,438.12x = 58,659,171,756.01
  5. Step 5: Solve for x
    x = 58,659,171,756.01/279,438.12
  6. Step 6: Final answer
    x = 209,918.29

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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.