Home / 389,379.32-537,309.33-217,284.29

Finding the Fourth Proportional to 389,379.32, 537,309.33 and 217,284.29

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Solution

The fourth proportional to 389,379.32, 537,309.33 and 217,284.29 is: 299,833.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,379.32 : 537,309.33 = 217,284.29 : x
  2. Step 2: Convert to fraction form
    389,379.32/537,309.33 = 217,284.29/x
  3. Step 3: Cross multiply
    389,379.32x = 537,309.33 × 217,284.29
  4. Step 4: Simplify right side
    389,379.32x = 116,748,873,592.88
  5. Step 5: Solve for x
    x = 116,748,873,592.88/389,379.32
  6. Step 6: Final answer
    x = 299,833.27

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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.