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Finding the Fourth Proportional to 329,215.50, 454,317.48 and 178,312.50

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Solution

The fourth proportional to 329,215.50, 454,317.48 and 178,312.50 is: 246,071.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,215.50 : 454,317.48 = 178,312.50 : x
  2. Step 2: Convert to fraction form
    329,215.50/454,317.48 = 178,312.50/x
  3. Step 3: Cross multiply
    329,215.50x = 454,317.48 × 178,312.50
  4. Step 4: Simplify right side
    329,215.50x = 81,010,485,652.50
  5. Step 5: Solve for x
    x = 81,010,485,652.50/329,215.50
  6. Step 6: Final answer
    x = 246,071.30

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1.5x scale

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.