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Finding the Fourth Proportional to 213,470.76, 319,541.83 and 134,418.91

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Solution

The fourth proportional to 213,470.76, 319,541.83 and 134,418.91 is: 201,210.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,470.76 : 319,541.83 = 134,418.91 : x
  2. Step 2: Convert to fraction form
    213,470.76/319,541.83 = 134,418.91/x
  3. Step 3: Cross multiply
    213,470.76x = 319,541.83 × 134,418.91
  4. Step 4: Simplify right side
    213,470.76x = 42,952,464,488.01
  5. Step 5: Solve for x
    x = 42,952,464,488.01/213,470.76
  6. Step 6: Final answer
    x = 201,210.06

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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.