Home / 207,345.80-309,401.09-185,005.64

Finding the Fourth Proportional to 207,345.80, 309,401.09 and 185,005.64

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Solution

The fourth proportional to 207,345.80, 309,401.09 and 185,005.64 is: 276,065.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,345.80 : 309,401.09 = 185,005.64 : x
  2. Step 2: Convert to fraction form
    207,345.80/309,401.09 = 185,005.64/x
  3. Step 3: Cross multiply
    207,345.80x = 309,401.09 × 185,005.64
  4. Step 4: Simplify right side
    207,345.80x = 57,240,946,672.15
  5. Step 5: Solve for x
    x = 57,240,946,672.15/207,345.80
  6. Step 6: Final answer
    x = 276,065.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.