Home / 279,207.07-385,305.47-151,882.36

Finding the Fourth Proportional to 279,207.07, 385,305.47 and 151,882.36

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Solution

The fourth proportional to 279,207.07, 385,305.47 and 151,882.36 is: 209,597.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,207.07 : 385,305.47 = 151,882.36 : x
  2. Step 2: Convert to fraction form
    279,207.07/385,305.47 = 151,882.36/x
  3. Step 3: Cross multiply
    279,207.07x = 385,305.47 × 151,882.36
  4. Step 4: Simplify right side
    279,207.07x = 58,521,103,345.10
  5. Step 5: Solve for x
    x = 58,521,103,345.10/279,207.07
  6. Step 6: Final answer
    x = 209,597.50

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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.