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Finding the Fourth Proportional to 253,014, 349,154.64 and 139,834.32

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Solution

The fourth proportional to 253,014, 349,154.64 and 139,834.32 is: 192,968.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,014 : 349,154.64 = 139,834.32 : x
  2. Step 2: Convert to fraction form
    253,014/349,154.64 = 139,834.32/x
  3. Step 3: Cross multiply
    253,014x = 349,154.64 × 139,834.32
  4. Step 4: Simplify right side
    253,014x = 48,823,801,659.24
  5. Step 5: Solve for x
    x = 48,823,801,659.24/253,014
  6. Step 6: Final answer
    x = 192,968.78

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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.