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Finding the Fourth Proportional to 380,750.30, 525,674.25 and 245,020.08

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Solution

The fourth proportional to 380,750.30, 525,674.25 and 245,020.08 is: 338,281.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,750.30 : 525,674.25 = 245,020.08 : x
  2. Step 2: Convert to fraction form
    380,750.30/525,674.25 = 245,020.08/x
  3. Step 3: Cross multiply
    380,750.30x = 525,674.25 × 245,020.08
  4. Step 4: Simplify right side
    380,750.30x = 128,800,746,788.94
  5. Step 5: Solve for x
    x = 128,800,746,788.94/380,750.30
  6. Step 6: Final answer
    x = 338,281.41

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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.