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Finding the Fourth Proportional to 303,398.10, 454,987.80 and 153,588.60

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Solution

The fourth proportional to 303,398.10, 454,987.80 and 153,588.60 is: 230,327.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,398.10 : 454,987.80 = 153,588.60 : x
  2. Step 2: Convert to fraction form
    303,398.10/454,987.80 = 153,588.60/x
  3. Step 3: Cross multiply
    303,398.10x = 454,987.80 × 153,588.60
  4. Step 4: Simplify right side
    303,398.10x = 69,880,939,219.08
  5. Step 5: Solve for x
    x = 69,880,939,219.08/303,398.10
  6. Step 6: Final answer
    x = 230,327.54

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.