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Finding the Fourth Proportional to 243,511.89, 336,045.44 and 136,081.89

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Solution

The fourth proportional to 243,511.89, 336,045.44 and 136,081.89 is: 187,792.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,511.89 : 336,045.44 = 136,081.89 : x
  2. Step 2: Convert to fraction form
    243,511.89/336,045.44 = 136,081.89/x
  3. Step 3: Cross multiply
    243,511.89x = 336,045.44 × 136,081.89
  4. Step 4: Simplify right side
    243,511.89x = 45,729,697,920.67
  5. Step 5: Solve for x
    x = 45,729,697,920.67/243,511.89
  6. Step 6: Final answer
    x = 187,792.46

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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.