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Finding the Fourth Proportional to 345,552.30, 518,328.45 and 325,869.30

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Solution

The fourth proportional to 345,552.30, 518,328.45 and 325,869.30 is: 488,803.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,552.30 : 518,328.45 = 325,869.30 : x
  2. Step 2: Convert to fraction form
    345,552.30/518,328.45 = 325,869.30/x
  3. Step 3: Cross multiply
    345,552.30x = 518,328.45 × 325,869.30
  4. Step 4: Simplify right side
    345,552.30x = 168,907,329,171.59
  5. Step 5: Solve for x
    x = 168,907,329,171.59/345,552.30
  6. Step 6: Final answer
    x = 488,803.95

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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.