Home / 279,266.40-385,389.32-151,942.92

Finding the Fourth Proportional to 279,266.40, 385,389.32 and 151,942.92

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Solution

The fourth proportional to 279,266.40, 385,389.32 and 151,942.92 is: 209,682.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,266.40 : 385,389.32 = 151,942.92 : x
  2. Step 2: Convert to fraction form
    279,266.40/385,389.32 = 151,942.92/x
  3. Step 3: Cross multiply
    279,266.40x = 385,389.32 × 151,942.92
  4. Step 4: Simplify right side
    279,266.40x = 58,557,178,617.61
  5. Step 5: Solve for x
    x = 58,557,178,617.61/279,266.40
  6. Step 6: Final answer
    x = 209,682.15

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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.