Home / 384,973.56-531,254.70-215,223.48

Finding the Fourth Proportional to 384,973.56, 531,254.70 and 215,223.48

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Solution

The fourth proportional to 384,973.56, 531,254.70 and 215,223.48 is: 297,003.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,973.56 : 531,254.70 = 215,223.48 : x
  2. Step 2: Convert to fraction form
    384,973.56/531,254.70 = 215,223.48/x
  3. Step 3: Cross multiply
    384,973.56x = 531,254.70 × 215,223.48
  4. Step 4: Simplify right side
    384,973.56x = 114,338,485,300.36
  5. Step 5: Solve for x
    x = 114,338,485,300.36/384,973.56
  6. Step 6: Final answer
    x = 297,003.48

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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.