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Finding the Fourth Proportional to 253,104, 349,290.81 and 139,934.04

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Solution

The fourth proportional to 253,104, 349,290.81 and 139,934.04 is: 193,113.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,104 : 349,290.81 = 139,934.04 : x
  2. Step 2: Convert to fraction form
    253,104/349,290.81 = 139,934.04/x
  3. Step 3: Cross multiply
    253,104x = 349,290.81 × 139,934.04
  4. Step 4: Simplify right side
    253,104x = 48,877,674,178.17
  5. Step 5: Solve for x
    x = 48,877,674,178.17/253,104
  6. Step 6: Final answer
    x = 193,113.01

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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.