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Finding the Fourth Proportional to 210,418.10, 290,374.80 and 114,924.80

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Solution

The fourth proportional to 210,418.10, 290,374.80 and 114,924.80 is: 158,595.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,418.10 : 290,374.80 = 114,924.80 : x
  2. Step 2: Convert to fraction form
    210,418.10/290,374.80 = 114,924.80/x
  3. Step 3: Cross multiply
    210,418.10x = 290,374.80 × 114,924.80
  4. Step 4: Simplify right side
    210,418.10x = 33,371,265,815.04
  5. Step 5: Solve for x
    x = 33,371,265,815.04/210,418.10
  6. Step 6: Final answer
    x = 158,595.03

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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.