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Finding the Fourth Proportional to 349,661.72, 525,492.13 and 325,968.40

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Solution

The fourth proportional to 349,661.72, 525,492.13 and 325,968.40 is: 489,884.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    349,661.72 : 525,492.13 = 325,968.40 : x
  2. Step 2: Convert to fraction form
    349,661.72/525,492.13 = 325,968.40/x
  3. Step 3: Cross multiply
    349,661.72x = 525,492.13 × 325,968.40
  4. Step 4: Simplify right side
    349,661.72x = 171,293,828,828.69
  5. Step 5: Solve for x
    x = 171,293,828,828.69/349,661.72
  6. Step 6: Final answer
    x = 489,884.42

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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.