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Finding the Fourth Proportional to 358,769, 538,219.63 and 148,423.34

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Solution

The fourth proportional to 358,769, 538,219.63 and 148,423.34 is: 222,662.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,769 : 538,219.63 = 148,423.34 : x
  2. Step 2: Convert to fraction form
    358,769/538,219.63 = 148,423.34/x
  3. Step 3: Cross multiply
    358,769x = 538,219.63 × 148,423.34
  4. Step 4: Simplify right side
    358,769x = 79,884,354,396.05
  5. Step 5: Solve for x
    x = 79,884,354,396.05/358,769
  6. Step 6: Final answer
    x = 222,662.37

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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.