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Finding the Fourth Proportional to 329,005.10, 492,851.55 and 171,322.40

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Solution

The fourth proportional to 329,005.10, 492,851.55 and 171,322.40 is: 256,641.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,005.10 : 492,851.55 = 171,322.40 : x
  2. Step 2: Convert to fraction form
    329,005.10/492,851.55 = 171,322.40/x
  3. Step 3: Cross multiply
    329,005.10x = 492,851.55 × 171,322.40
  4. Step 4: Simplify right side
    329,005.10x = 84,436,510,389.72
  5. Step 5: Solve for x
    x = 84,436,510,389.72/329,005.10
  6. Step 6: Final answer
    x = 256,641.95

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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.