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Finding the Fourth Proportional to 210,423.66, 290,384.66 and 114,930.58

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Solution

The fourth proportional to 210,423.66, 290,384.66 and 114,930.58 is: 158,604.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,423.66 : 290,384.66 = 114,930.58 : x
  2. Step 2: Convert to fraction form
    210,423.66/290,384.66 = 114,930.58/x
  3. Step 3: Cross multiply
    210,423.66x = 290,384.66 × 114,930.58
  4. Step 4: Simplify right side
    210,423.66x = 33,374,077,396.90
  5. Step 5: Solve for x
    x = 33,374,077,396.90/210,423.66
  6. Step 6: Final answer
    x = 158,604.21

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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.