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Finding the Fourth Proportional to 253,125.51, 349,401.10 and 145,738.34

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Solution

The fourth proportional to 253,125.51, 349,401.10 and 145,738.34 is: 201,169.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,125.51 : 349,401.10 = 145,738.34 : x
  2. Step 2: Convert to fraction form
    253,125.51/349,401.10 = 145,738.34/x
  3. Step 3: Cross multiply
    253,125.51x = 349,401.10 × 145,738.34
  4. Step 4: Simplify right side
    253,125.51x = 50,921,136,308.17
  5. Step 5: Solve for x
    x = 50,921,136,308.17/253,125.51
  6. Step 6: Final answer
    x = 201,169.52

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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.