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Finding the Fourth Proportional to 286,913.80, 429,852.30 and 245,441.80

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Solution

The fourth proportional to 286,913.80, 429,852.30 and 245,441.80 is: 367,719.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,913.80 : 429,852.30 = 245,441.80 : x
  2. Step 2: Convert to fraction form
    286,913.80/429,852.30 = 245,441.80/x
  3. Step 3: Cross multiply
    286,913.80x = 429,852.30 × 245,441.80
  4. Step 4: Simplify right side
    286,913.80x = 105,503,722,246.14
  5. Step 5: Solve for x
    x = 105,503,722,246.14/286,913.80
  6. Step 6: Final answer
    x = 367,719.23

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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.