Home / 279,603.36-385,857-152,278.83

Finding the Fourth Proportional to 279,603.36, 385,857 and 152,278.83

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Solution

The fourth proportional to 279,603.36, 385,857 and 152,278.83 is: 210,147.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,603.36 : 385,857 = 152,278.83 : x
  2. Step 2: Convert to fraction form
    279,603.36/385,857 = 152,278.83/x
  3. Step 3: Cross multiply
    279,603.36x = 385,857 × 152,278.83
  4. Step 4: Simplify right side
    279,603.36x = 58,757,852,507.31
  5. Step 5: Solve for x
    x = 58,757,852,507.31/279,603.36
  6. Step 6: Final answer
    x = 210,147.16

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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.