Home / 288,526.32-432,789.48-189,314.28

Finding the Fourth Proportional to 288,526.32, 432,789.48 and 189,314.28

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Solution

The fourth proportional to 288,526.32, 432,789.48 and 189,314.28 is: 283,971.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,526.32 : 432,789.48 = 189,314.28 : x
  2. Step 2: Convert to fraction form
    288,526.32/432,789.48 = 189,314.28/x
  3. Step 3: Cross multiply
    288,526.32x = 432,789.48 × 189,314.28
  4. Step 4: Simplify right side
    288,526.32x = 81,933,228,797.77
  5. Step 5: Solve for x
    x = 81,933,228,797.77/288,526.32
  6. Step 6: Final answer
    x = 283,971.42

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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.