Home / 314,585.10-434,147.85-187,243.38

Finding the Fourth Proportional to 314,585.10, 434,147.85 and 187,243.38

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Solution

The fourth proportional to 314,585.10, 434,147.85 and 187,243.38 is: 258,408.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    314,585.10 : 434,147.85 = 187,243.38 : x
  2. Step 2: Convert to fraction form
    314,585.10/434,147.85 = 187,243.38/x
  3. Step 3: Cross multiply
    314,585.10x = 434,147.85 × 187,243.38
  4. Step 4: Simplify right side
    314,585.10x = 81,291,310,853.73
  5. Step 5: Solve for x
    x = 81,291,310,853.73/314,585.10
  6. Step 6: Final answer
    x = 258,408.01

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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.