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Finding the Fourth Proportional to 286,161.93, 429,252.03 and 143,929.57

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Solution

The fourth proportional to 286,161.93, 429,252.03 and 143,929.57 is: 215,898.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,161.93 : 429,252.03 = 143,929.57 : x
  2. Step 2: Convert to fraction form
    286,161.93/429,252.03 = 143,929.57/x
  3. Step 3: Cross multiply
    286,161.93x = 429,252.03 × 143,929.57
  4. Step 4: Simplify right side
    286,161.93x = 61,782,060,099.53
  5. Step 5: Solve for x
    x = 61,782,060,099.53/286,161.93
  6. Step 6: Final answer
    x = 215,898.95

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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.