Home / 279,478.14-385,679.54-152,153.74

Finding the Fourth Proportional to 279,478.14, 385,679.54 and 152,153.74

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Solution

The fourth proportional to 279,478.14, 385,679.54 and 152,153.74 is: 209,972.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,478.14 : 385,679.54 = 152,153.74 : x
  2. Step 2: Convert to fraction form
    279,478.14/385,679.54 = 152,153.74/x
  3. Step 3: Cross multiply
    279,478.14x = 385,679.54 × 152,153.74
  4. Step 4: Simplify right side
    279,478.14x = 58,682,584,452.48
  5. Step 5: Solve for x
    x = 58,682,584,452.48/279,478.14
  6. Step 6: Final answer
    x = 209,972.00

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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.