Home / 307,965.15-459,101-303,112.05

Finding the Fourth Proportional to 307,965.15, 459,101 and 303,112.05

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Solution

The fourth proportional to 307,965.15, 459,101 and 303,112.05 is: 451,866.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,965.15 : 459,101 = 303,112.05 : x
  2. Step 2: Convert to fraction form
    307,965.15/459,101 = 303,112.05/x
  3. Step 3: Cross multiply
    307,965.15x = 459,101 × 303,112.05
  4. Step 4: Simplify right side
    307,965.15x = 139,159,045,267.05
  5. Step 5: Solve for x
    x = 139,159,045,267.05/307,965.15
  6. Step 6: Final answer
    x = 451,866.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.