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Finding the Fourth Proportional to 302,889.51, 417,990.38 and 166,928.36

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Solution

The fourth proportional to 302,889.51, 417,990.38 and 166,928.36 is: 230,362.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,889.51 : 417,990.38 = 166,928.36 : x
  2. Step 2: Convert to fraction form
    302,889.51/417,990.38 = 166,928.36/x
  3. Step 3: Cross multiply
    302,889.51x = 417,990.38 × 166,928.36
  4. Step 4: Simplify right side
    302,889.51x = 69,774,445,704.58
  5. Step 5: Solve for x
    x = 69,774,445,704.58/302,889.51
  6. Step 6: Final answer
    x = 230,362.70

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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.