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Finding the Fourth Proportional to 253,032.36, 349,184.76 and 139,855.14

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Solution

The fourth proportional to 253,032.36, 349,184.76 and 139,855.14 is: 193,000.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,032.36 : 349,184.76 = 139,855.14 : x
  2. Step 2: Convert to fraction form
    253,032.36/349,184.76 = 139,855.14/x
  3. Step 3: Cross multiply
    253,032.36x = 349,184.76 × 139,855.14
  4. Step 4: Simplify right side
    253,032.36x = 48,835,283,495.67
  5. Step 5: Solve for x
    x = 48,835,283,495.67/253,032.36
  6. Step 6: Final answer
    x = 193,000.15

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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.