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Finding the Fourth Proportional to 453,078.78, 679,193.73 and 153,349.62

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Solution

The fourth proportional to 453,078.78, 679,193.73 and 153,349.62 is: 229,880.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,078.78 : 679,193.73 = 153,349.62 : x
  2. Step 2: Convert to fraction form
    453,078.78/679,193.73 = 153,349.62/x
  3. Step 3: Cross multiply
    453,078.78x = 679,193.73 × 153,349.62
  4. Step 4: Simplify right side
    453,078.78x = 104,154,100,401.88
  5. Step 5: Solve for x
    x = 104,154,100,401.88/453,078.78
  6. Step 6: Final answer
    x = 229,880.77

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1.5x scale

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.