Home / 402,533.15-555,501.44-221,261.83

Finding the Fourth Proportional to 402,533.15, 555,501.44 and 221,261.83

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Solution

The fourth proportional to 402,533.15, 555,501.44 and 221,261.83 is: 305,344.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,533.15 : 555,501.44 = 221,261.83 : x
  2. Step 2: Convert to fraction form
    402,533.15/555,501.44 = 221,261.83/x
  3. Step 3: Cross multiply
    402,533.15x = 555,501.44 × 221,261.83
  4. Step 4: Simplify right side
    402,533.15x = 122,911,264,346.44
  5. Step 5: Solve for x
    x = 122,911,264,346.44/402,533.15
  6. Step 6: Final answer
    x = 305,344.46

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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.