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Finding the Fourth Proportional to 286,680.60, 395,561.61 and 165,777.84

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Solution

The fourth proportional to 286,680.60, 395,561.61 and 165,777.84 is: 228,740.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,680.60 : 395,561.61 = 165,777.84 : x
  2. Step 2: Convert to fraction form
    286,680.60/395,561.61 = 165,777.84/x
  3. Step 3: Cross multiply
    286,680.60x = 395,561.61 × 165,777.84
  4. Step 4: Simplify right side
    286,680.60x = 65,575,349,292.72
  5. Step 5: Solve for x
    x = 65,575,349,292.72/286,680.60
  6. Step 6: Final answer
    x = 228,740.10

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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.