Home / 389,236.32-537,146.64-210,388.32

Finding the Fourth Proportional to 389,236.32, 537,146.64 and 210,388.32

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Solution

The fourth proportional to 389,236.32, 537,146.64 and 210,388.32 is: 290,336.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,236.32 : 537,146.64 = 210,388.32 : x
  2. Step 2: Convert to fraction form
    389,236.32/537,146.64 = 210,388.32/x
  3. Step 3: Cross multiply
    389,236.32x = 537,146.64 × 210,388.32
  4. Step 4: Simplify right side
    389,236.32x = 113,009,379,183.25
  5. Step 5: Solve for x
    x = 113,009,379,183.25/389,236.32
  6. Step 6: Final answer
    x = 290,336.16

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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.