Home / 340,916.16-470,445.12-187,949.28

Finding the Fourth Proportional to 340,916.16, 470,445.12 and 187,949.28

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Solution

The fourth proportional to 340,916.16, 470,445.12 and 187,949.28 is: 259,359.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,916.16 : 470,445.12 = 187,949.28 : x
  2. Step 2: Convert to fraction form
    340,916.16/470,445.12 = 187,949.28/x
  3. Step 3: Cross multiply
    340,916.16x = 470,445.12 × 187,949.28
  4. Step 4: Simplify right side
    340,916.16x = 88,419,821,583.51
  5. Step 5: Solve for x
    x = 88,419,821,583.51/340,916.16
  6. Step 6: Final answer
    x = 259,359.43

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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.