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Finding the Fourth Proportional to 288,056.70, 397,458.88 and 165,525.40

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Solution

The fourth proportional to 288,056.70, 397,458.88 and 165,525.40 is: 228,390.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,056.70 : 397,458.88 = 165,525.40 : x
  2. Step 2: Convert to fraction form
    288,056.70/397,458.88 = 165,525.40/x
  3. Step 3: Cross multiply
    288,056.70x = 397,458.88 × 165,525.40
  4. Step 4: Simplify right side
    288,056.70x = 65,789,540,095.55
  5. Step 5: Solve for x
    x = 65,789,540,095.55/288,056.70
  6. Step 6: Final answer
    x = 228,390.94

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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.