Home / 389,262.05-537,080.32-228,030.60

Finding the Fourth Proportional to 389,262.05, 537,080.32 and 228,030.60

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Solution

The fourth proportional to 389,262.05, 537,080.32 and 228,030.60 is: 314,622.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,262.05 : 537,080.32 = 228,030.60 : x
  2. Step 2: Convert to fraction form
    389,262.05/537,080.32 = 228,030.60/x
  3. Step 3: Cross multiply
    389,262.05x = 537,080.32 × 228,030.60
  4. Step 4: Simplify right side
    389,262.05x = 122,470,747,617.79
  5. Step 5: Solve for x
    x = 122,470,747,617.79/389,262.05
  6. Step 6: Final answer
    x = 314,622.88

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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.