Home / 389,105.34-537,085.01-228,012.28

Finding the Fourth Proportional to 389,105.34, 537,085.01 and 228,012.28

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Solution

The fourth proportional to 389,105.34, 537,085.01 and 228,012.28 is: 314,727.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,105.34 : 537,085.01 = 228,012.28 : x
  2. Step 2: Convert to fraction form
    389,105.34/537,085.01 = 228,012.28/x
  3. Step 3: Cross multiply
    389,105.34x = 537,085.01 × 228,012.28
  4. Step 4: Simplify right side
    389,105.34x = 122,461,976,911.24
  5. Step 5: Solve for x
    x = 122,461,976,911.24/389,105.34
  6. Step 6: Final answer
    x = 314,727.06

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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.