Home / 316,390.95-436,620.24-173,160.23

Finding the Fourth Proportional to 316,390.95, 436,620.24 and 173,160.23

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Solution

The fourth proportional to 316,390.95, 436,620.24 and 173,160.23 is: 238,961.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,390.95 : 436,620.24 = 173,160.23 : x
  2. Step 2: Convert to fraction form
    316,390.95/436,620.24 = 173,160.23/x
  3. Step 3: Cross multiply
    316,390.95x = 436,620.24 × 173,160.23
  4. Step 4: Simplify right side
    316,390.95x = 75,605,258,997.95
  5. Step 5: Solve for x
    x = 75,605,258,997.95/316,390.95
  6. Step 6: Final answer
    x = 238,961.51

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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.