Home / 291,727.50-402,034.35-211,018.15

Finding the Fourth Proportional to 291,727.50, 402,034.35 and 211,018.15

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Solution

The fourth proportional to 291,727.50, 402,034.35 and 211,018.15 is: 290,807.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,727.50 : 402,034.35 = 211,018.15 : x
  2. Step 2: Convert to fraction form
    291,727.50/402,034.35 = 211,018.15/x
  3. Step 3: Cross multiply
    291,727.50x = 402,034.35 × 211,018.15
  4. Step 4: Simplify right side
    291,727.50x = 84,836,544,773.45
  5. Step 5: Solve for x
    x = 84,836,544,773.45/291,727.50
  6. Step 6: Final answer
    x = 290,807.50

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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.