Home / 279,112.77-385,172.01-151,785.63

Finding the Fourth Proportional to 279,112.77, 385,172.01 and 151,785.63

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Solution

The fourth proportional to 279,112.77, 385,172.01 and 151,785.63 is: 209,462.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,112.77 : 385,172.01 = 151,785.63 : x
  2. Step 2: Convert to fraction form
    279,112.77/385,172.01 = 151,785.63/x
  3. Step 3: Cross multiply
    279,112.77x = 385,172.01 × 151,785.63
  4. Step 4: Simplify right side
    279,112.77x = 58,463,576,196.22
  5. Step 5: Solve for x
    x = 58,463,576,196.22/279,112.77
  6. Step 6: Final answer
    x = 209,462.20

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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.