Home / 307,055.32-423,912.16-205,253.22

Finding the Fourth Proportional to 307,055.32, 423,912.16 and 205,253.22

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Solution

The fourth proportional to 307,055.32, 423,912.16 and 205,253.22 is: 283,366.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,055.32 : 423,912.16 = 205,253.22 : x
  2. Step 2: Convert to fraction form
    307,055.32/423,912.16 = 205,253.22/x
  3. Step 3: Cross multiply
    307,055.32x = 423,912.16 × 205,253.22
  4. Step 4: Simplify right side
    307,055.32x = 87,009,335,837.16
  5. Step 5: Solve for x
    x = 87,009,335,837.16/307,055.32
  6. Step 6: Final answer
    x = 283,366.97

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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.