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Finding the Fourth Proportional to 289,955.08, 400,140.18 and 160,894.06

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Solution

The fourth proportional to 289,955.08, 400,140.18 and 160,894.06 is: 222,035.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,955.08 : 400,140.18 = 160,894.06 : x
  2. Step 2: Convert to fraction form
    289,955.08/400,140.18 = 160,894.06/x
  3. Step 3: Cross multiply
    289,955.08x = 400,140.18 × 160,894.06
  4. Step 4: Simplify right side
    289,955.08x = 64,380,178,257.32
  5. Step 5: Solve for x
    x = 64,380,178,257.32/289,955.08
  6. Step 6: Final answer
    x = 222,035.01

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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.