Home / 389,440.14-537,443.73-219,674.22

Finding the Fourth Proportional to 389,440.14, 537,443.73 and 219,674.22

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Solution

The fourth proportional to 389,440.14, 537,443.73 and 219,674.22 is: 303,159.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,440.14 : 537,443.73 = 219,674.22 : x
  2. Step 2: Convert to fraction form
    389,440.14/537,443.73 = 219,674.22/x
  3. Step 3: Cross multiply
    389,440.14x = 537,443.73 × 219,674.22
  4. Step 4: Simplify right side
    389,440.14x = 118,062,532,181.64
  5. Step 5: Solve for x
    x = 118,062,532,181.64/389,440.14
  6. Step 6: Final answer
    x = 303,159.64

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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.