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Finding the Fourth Proportional to 425,745.22, 587,670.71 and 253,717.18

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Solution

The fourth proportional to 425,745.22, 587,670.71 and 253,717.18 is: 350,214.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,745.22 : 587,670.71 = 253,717.18 : x
  2. Step 2: Convert to fraction form
    425,745.22/587,670.71 = 253,717.18/x
  3. Step 3: Cross multiply
    425,745.22x = 587,670.71 × 253,717.18
  4. Step 4: Simplify right side
    425,745.22x = 149,102,155,309.80
  5. Step 5: Solve for x
    x = 149,102,155,309.80/425,745.22
  6. Step 6: Final answer
    x = 350,214.51

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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.