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Finding the Fourth Proportional to 253,126.89, 349,302.28 and 139,927.77

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Solution

The fourth proportional to 253,126.89, 349,302.28 and 139,927.77 is: 193,093.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,126.89 : 349,302.28 = 139,927.77 : x
  2. Step 2: Convert to fraction form
    253,126.89/349,302.28 = 139,927.77/x
  3. Step 3: Cross multiply
    253,126.89x = 349,302.28 × 139,927.77
  4. Step 4: Simplify right side
    253,126.89x = 48,877,089,096.32
  5. Step 5: Solve for x
    x = 48,877,089,096.32/253,126.89
  6. Step 6: Final answer
    x = 193,093.23

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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.