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Finding the Fourth Proportional to 210,498.58, 290,492.22 and 115,011.19

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Solution

The fourth proportional to 210,498.58, 290,492.22 and 115,011.19 is: 158,717.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,498.58 : 290,492.22 = 115,011.19 : x
  2. Step 2: Convert to fraction form
    210,498.58/290,492.22 = 115,011.19/x
  3. Step 3: Cross multiply
    210,498.58x = 290,492.22 × 115,011.19
  4. Step 4: Simplify right side
    210,498.58x = 33,409,855,907.94
  5. Step 5: Solve for x
    x = 33,409,855,907.94/210,498.58
  6. Step 6: Final answer
    x = 158,717.73

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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.