Home / 300,190.40-450,285.52-142,332.72

Finding the Fourth Proportional to 300,190.40, 450,285.52 and 142,332.72

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Solution

The fourth proportional to 300,190.40, 450,285.52 and 142,332.72 is: 213,499.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,190.40 : 450,285.52 = 142,332.72 : x
  2. Step 2: Convert to fraction form
    300,190.40/450,285.52 = 142,332.72/x
  3. Step 3: Cross multiply
    300,190.40x = 450,285.52 × 142,332.72
  4. Step 4: Simplify right side
    300,190.40x = 64,090,362,838.21
  5. Step 5: Solve for x
    x = 64,090,362,838.21/300,190.40
  6. Step 6: Final answer
    x = 213,499.04

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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.