Home / 450,187.20-621,168.48-248,944.32

Finding the Fourth Proportional to 450,187.20, 621,168.48 and 248,944.32

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Solution

The fourth proportional to 450,187.20, 621,168.48 and 248,944.32 is: 343,493.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,187.20 : 621,168.48 = 248,944.32 : x
  2. Step 2: Convert to fraction form
    450,187.20/621,168.48 = 248,944.32/x
  3. Step 3: Cross multiply
    450,187.20x = 621,168.48 × 248,944.32
  4. Step 4: Simplify right side
    450,187.20x = 154,636,364,859.03
  5. Step 5: Solve for x
    x = 154,636,364,859.03/450,187.20
  6. Step 6: Final answer
    x = 343,493.47

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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.