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Finding the Fourth Proportional to 210,594, 290,619.18 and 115,101.36

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Solution

The fourth proportional to 210,594, 290,619.18 and 115,101.36 is: 158,839.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,594 : 290,619.18 = 115,101.36 : x
  2. Step 2: Convert to fraction form
    210,594/290,619.18 = 115,101.36/x
  3. Step 3: Cross multiply
    210,594x = 290,619.18 × 115,101.36
  4. Step 4: Simplify right side
    210,594x = 33,450,662,860.08
  5. Step 5: Solve for x
    x = 33,450,662,860.08/210,594
  6. Step 6: Final answer
    x = 158,839.58

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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.