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Finding the Fourth Proportional to 303,012.91, 418,159.88 and 168,885.55

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Solution

The fourth proportional to 303,012.91, 418,159.88 and 168,885.55 is: 233,063.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,012.91 : 418,159.88 = 168,885.55 : x
  2. Step 2: Convert to fraction form
    303,012.91/418,159.88 = 168,885.55/x
  3. Step 3: Cross multiply
    303,012.91x = 418,159.88 × 168,885.55
  4. Step 4: Simplify right side
    303,012.91x = 70,621,159,653.15
  5. Step 5: Solve for x
    x = 70,621,159,653.15/303,012.91
  6. Step 6: Final answer
    x = 233,063.21

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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.