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Finding the Fourth Proportional to 380,524.79, 525,128.06 and 229,592.63

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Solution

The fourth proportional to 380,524.79, 525,128.06 and 229,592.63 is: 316,840.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,524.79 : 525,128.06 = 229,592.63 : x
  2. Step 2: Convert to fraction form
    380,524.79/525,128.06 = 229,592.63/x
  3. Step 3: Cross multiply
    380,524.79x = 525,128.06 × 229,592.63
  4. Step 4: Simplify right side
    380,524.79x = 120,565,530,330.54
  5. Step 5: Solve for x
    x = 120,565,530,330.54/380,524.79
  6. Step 6: Final answer
    x = 316,840.15

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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.