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Finding the Fourth Proportional to 342,007.40, 471,955.46 and 189,037.64

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Solution

The fourth proportional to 342,007.40, 471,955.46 and 189,037.64 is: 260,863.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,007.40 : 471,955.46 = 189,037.64 : x
  2. Step 2: Convert to fraction form
    342,007.40/471,955.46 = 189,037.64/x
  3. Step 3: Cross multiply
    342,007.40x = 471,955.46 × 189,037.64
  4. Step 4: Simplify right side
    342,007.40x = 89,217,346,343.51
  5. Step 5: Solve for x
    x = 89,217,346,343.51/342,007.40
  6. Step 6: Final answer
    x = 260,863.79

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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.