Home / 250,009.72-345,014.32-135,288.36

Finding the Fourth Proportional to 250,009.72, 345,014.32 and 135,288.36

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Solution

The fourth proportional to 250,009.72, 345,014.32 and 135,288.36 is: 186,698.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,009.72 : 345,014.32 = 135,288.36 : x
  2. Step 2: Convert to fraction form
    250,009.72/345,014.32 = 135,288.36/x
  3. Step 3: Cross multiply
    250,009.72x = 345,014.32 × 135,288.36
  4. Step 4: Simplify right side
    250,009.72x = 46,676,421,529.32
  5. Step 5: Solve for x
    x = 46,676,421,529.32/250,009.72
  6. Step 6: Final answer
    x = 186,698.43

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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.