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Finding the Fourth Proportional to 248,453, 342,863.70 and 141,043.40

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Solution

The fourth proportional to 248,453, 342,863.70 and 141,043.40 is: 194,639.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,453 : 342,863.70 = 141,043.40 : x
  2. Step 2: Convert to fraction form
    248,453/342,863.70 = 141,043.40/x
  3. Step 3: Cross multiply
    248,453x = 342,863.70 × 141,043.40
  4. Step 4: Simplify right side
    248,453x = 48,358,661,984.58
  5. Step 5: Solve for x
    x = 48,358,661,984.58/248,453
  6. Step 6: Final answer
    x = 194,639.07

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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.