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Finding the Fourth Proportional to 228,319, 315,157.94 and 132,905.88

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Solution

The fourth proportional to 228,319, 315,157.94 and 132,905.88 is: 183,455.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,319 : 315,157.94 = 132,905.88 : x
  2. Step 2: Convert to fraction form
    228,319/315,157.94 = 132,905.88/x
  3. Step 3: Cross multiply
    228,319x = 315,157.94 × 132,905.88
  4. Step 4: Simplify right side
    228,319x = 41,886,343,354.69
  5. Step 5: Solve for x
    x = 41,886,343,354.69/228,319
  6. Step 6: Final answer
    x = 183,455.36

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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.