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Finding the Fourth Proportional to 304,453.56, 420,120.90 and 168,484.80

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Solution

The fourth proportional to 304,453.56, 420,120.90 and 168,484.80 is: 232,495.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,453.56 : 420,120.90 = 168,484.80 : x
  2. Step 2: Convert to fraction form
    304,453.56/420,120.90 = 168,484.80/x
  3. Step 3: Cross multiply
    304,453.56x = 420,120.90 × 168,484.80
  4. Step 4: Simplify right side
    304,453.56x = 70,783,985,812.32
  5. Step 5: Solve for x
    x = 70,783,985,812.32/304,453.56
  6. Step 6: Final answer
    x = 232,495.18

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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.