Home / 312,496.25-431,271.34-176,555.16

Finding the Fourth Proportional to 312,496.25, 431,271.34 and 176,555.16

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Solution

The fourth proportional to 312,496.25, 431,271.34 and 176,555.16 is: 243,661.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,496.25 : 431,271.34 = 176,555.16 : x
  2. Step 2: Convert to fraction form
    312,496.25/431,271.34 = 176,555.16/x
  3. Step 3: Cross multiply
    312,496.25x = 431,271.34 × 176,555.16
  4. Step 4: Simplify right side
    312,496.25x = 76,143,179,995.73
  5. Step 5: Solve for x
    x = 76,143,179,995.73/312,496.25
  6. Step 6: Final answer
    x = 243,661.10

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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.