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Finding the Fourth Proportional to 251,210, 346,670.40 and 136,489.04

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Solution

The fourth proportional to 251,210, 346,670.40 and 136,489.04 is: 188,355.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,210 : 346,670.40 = 136,489.04 : x
  2. Step 2: Convert to fraction form
    251,210/346,670.40 = 136,489.04/x
  3. Step 3: Cross multiply
    251,210x = 346,670.40 × 136,489.04
  4. Step 4: Simplify right side
    251,210x = 47,316,710,092.42
  5. Step 5: Solve for x
    x = 47,316,710,092.42/251,210
  6. Step 6: Final answer
    x = 188,355.20

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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.