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Finding the Fourth Proportional to 368,967.53, 553,451.70 and 102,728.63

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Solution

The fourth proportional to 368,967.53, 553,451.70 and 102,728.63 is: 154,093.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,967.53 : 553,451.70 = 102,728.63 : x
  2. Step 2: Convert to fraction form
    368,967.53/553,451.70 = 102,728.63/x
  3. Step 3: Cross multiply
    368,967.53x = 553,451.70 × 102,728.63
  4. Step 4: Simplify right side
    368,967.53x = 56,855,334,912.17
  5. Step 5: Solve for x
    x = 56,855,334,912.17/368,967.53
  6. Step 6: Final answer
    x = 154,093.06

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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.