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Finding the Fourth Proportional to 286,733.80, 429,954.90 and 168,441.40

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Solution

The fourth proportional to 286,733.80, 429,954.90 and 168,441.40 is: 252,576.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,733.80 : 429,954.90 = 168,441.40 : x
  2. Step 2: Convert to fraction form
    286,733.80/429,954.90 = 168,441.40/x
  3. Step 3: Cross multiply
    286,733.80x = 429,954.90 × 168,441.40
  4. Step 4: Simplify right side
    286,733.80x = 72,422,205,292.86
  5. Step 5: Solve for x
    x = 72,422,205,292.86/286,733.80
  6. Step 6: Final answer
    x = 252,576.45

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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.