Home / 558,835.84-838,245.48-138,111.58

Finding the Fourth Proportional to 558,835.84, 838,245.48 and 138,111.58

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Solution

The fourth proportional to 558,835.84, 838,245.48 and 138,111.58 is: 207,165.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,835.84 : 838,245.48 = 138,111.58 : x
  2. Step 2: Convert to fraction form
    558,835.84/838,245.48 = 138,111.58/x
  3. Step 3: Cross multiply
    558,835.84x = 838,245.48 × 138,111.58
  4. Step 4: Simplify right side
    558,835.84x = 115,771,407,670.66
  5. Step 5: Solve for x
    x = 115,771,407,670.66/558,835.84
  6. Step 6: Final answer
    x = 207,165.32

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.