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Finding the Fourth Proportional to 251,210.84, 346,670.88 and 138,040.88

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Solution

The fourth proportional to 251,210.84, 346,670.88 and 138,040.88 is: 190,496.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,210.84 : 346,670.88 = 138,040.88 : x
  2. Step 2: Convert to fraction form
    251,210.84/346,670.88 = 138,040.88/x
  3. Step 3: Cross multiply
    251,210.84x = 346,670.88 × 138,040.88
  4. Step 4: Simplify right side
    251,210.84x = 47,854,753,345.57
  5. Step 5: Solve for x
    x = 47,854,753,345.57/251,210.84
  6. Step 6: Final answer
    x = 190,496.37

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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.