Home / 402,733.44-555,786.42-221,459.16

Finding the Fourth Proportional to 402,733.44, 555,786.42 and 221,459.16

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Solution

The fourth proportional to 402,733.44, 555,786.42 and 221,459.16 is: 305,621.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,733.44 : 555,786.42 = 221,459.16 : x
  2. Step 2: Convert to fraction form
    402,733.44/555,786.42 = 221,459.16/x
  3. Step 3: Cross multiply
    402,733.44x = 555,786.42 × 221,459.16
  4. Step 4: Simplify right side
    402,733.44x = 123,083,993,712.61
  5. Step 5: Solve for x
    x = 123,083,993,712.61/402,733.44
  6. Step 6: Final answer
    x = 305,621.49

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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.