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Finding the Fourth Proportional to 286,876.89, 429,775.47 and 168,195.69

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Solution

The fourth proportional to 286,876.89, 429,775.47 and 168,195.69 is: 251,977.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,876.89 : 429,775.47 = 168,195.69 : x
  2. Step 2: Convert to fraction form
    286,876.89/429,775.47 = 168,195.69/x
  3. Step 3: Cross multiply
    286,876.89x = 429,775.47 × 168,195.69
  4. Step 4: Simplify right side
    286,876.89x = 72,286,381,721.72
  5. Step 5: Solve for x
    x = 72,286,381,721.72/286,876.89
  6. Step 6: Final answer
    x = 251,977.01

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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.