Home / 309,177.47-426,568.07-173,193.05

Finding the Fourth Proportional to 309,177.47, 426,568.07 and 173,193.05

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Solution

The fourth proportional to 309,177.47, 426,568.07 and 173,193.05 is: 238,952.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,177.47 : 426,568.07 = 173,193.05 : x
  2. Step 2: Convert to fraction form
    309,177.47/426,568.07 = 173,193.05/x
  3. Step 3: Cross multiply
    309,177.47x = 426,568.07 × 173,193.05
  4. Step 4: Simplify right side
    309,177.47x = 73,878,624,209.95
  5. Step 5: Solve for x
    x = 73,878,624,209.95/309,177.47
  6. Step 6: Final answer
    x = 238,952.16

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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.