Home / 340,529.54-469,705.77-212,983.70

Finding the Fourth Proportional to 340,529.54, 469,705.77 and 212,983.70

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Solution

The fourth proportional to 340,529.54, 469,705.77 and 212,983.70 is: 293,776.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,529.54 : 469,705.77 = 212,983.70 : x
  2. Step 2: Convert to fraction form
    340,529.54/469,705.77 = 212,983.70/x
  3. Step 3: Cross multiply
    340,529.54x = 469,705.77 × 212,983.70
  4. Step 4: Simplify right side
    340,529.54x = 100,039,670,457.42
  5. Step 5: Solve for x
    x = 100,039,670,457.42/340,529.54
  6. Step 6: Final answer
    x = 293,776.78

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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.