Home / 309,964.10-464,946.15-99,623.30

Finding the Fourth Proportional to 309,964.10, 464,946.15 and 99,623.30

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Solution

The fourth proportional to 309,964.10, 464,946.15 and 99,623.30 is: 149,434.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,964.10 : 464,946.15 = 99,623.30 : x
  2. Step 2: Convert to fraction form
    309,964.10/464,946.15 = 99,623.30/x
  3. Step 3: Cross multiply
    309,964.10x = 464,946.15 × 99,623.30
  4. Step 4: Simplify right side
    309,964.10x = 46,319,469,785.30
  5. Step 5: Solve for x
    x = 46,319,469,785.30/309,964.10
  6. Step 6: Final answer
    x = 149,434.95

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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.