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Finding the Fourth Proportional to 380,335.51, 569,597.61 and 220,073.69

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Solution

The fourth proportional to 380,335.51, 569,597.61 and 220,073.69 is: 329,586.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,335.51 : 569,597.61 = 220,073.69 : x
  2. Step 2: Convert to fraction form
    380,335.51/569,597.61 = 220,073.69/x
  3. Step 3: Cross multiply
    380,335.51x = 569,597.61 × 220,073.69
  4. Step 4: Simplify right side
    380,335.51x = 125,353,450,678.92
  5. Step 5: Solve for x
    x = 125,353,450,678.92/380,335.51
  6. Step 6: Final answer
    x = 329,586.51

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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.