Home / 288,288.06-432,433.63-189,076.51

Finding the Fourth Proportional to 288,288.06, 432,433.63 and 189,076.51

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Solution

The fourth proportional to 288,288.06, 432,433.63 and 189,076.51 is: 283,615.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,288.06 : 432,433.63 = 189,076.51 : x
  2. Step 2: Convert to fraction form
    288,288.06/432,433.63 = 189,076.51/x
  3. Step 3: Cross multiply
    288,288.06x = 432,433.63 × 189,076.51
  4. Step 4: Simplify right side
    288,288.06x = 81,763,041,567.03
  5. Step 5: Solve for x
    x = 81,763,041,567.03/288,288.06
  6. Step 6: Final answer
    x = 283,615.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.