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Finding the Fourth Proportional to 251,018.13, 346,404.96 and 137,840.88

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Solution

The fourth proportional to 251,018.13, 346,404.96 and 137,840.88 is: 190,220.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,018.13 : 346,404.96 = 137,840.88 : x
  2. Step 2: Convert to fraction form
    251,018.13/346,404.96 = 137,840.88/x
  3. Step 3: Cross multiply
    251,018.13x = 346,404.96 × 137,840.88
  4. Step 4: Simplify right side
    251,018.13x = 47,748,764,522.76
  5. Step 5: Solve for x
    x = 47,748,764,522.76/251,018.13
  6. Step 6: Final answer
    x = 190,220.38

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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.