Home / 304,631.16-420,437.43-189,928.41

Finding the Fourth Proportional to 304,631.16, 420,437.43 and 189,928.41

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Solution

The fourth proportional to 304,631.16, 420,437.43 and 189,928.41 is: 262,130.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,631.16 : 420,437.43 = 189,928.41 : x
  2. Step 2: Convert to fraction form
    304,631.16/420,437.43 = 189,928.41/x
  3. Step 3: Cross multiply
    304,631.16x = 420,437.43 × 189,928.41
  4. Step 4: Simplify right side
    304,631.16x = 79,853,012,584.39
  5. Step 5: Solve for x
    x = 79,853,012,584.39/304,631.16
  6. Step 6: Final answer
    x = 262,130.15

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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.