Home / 384,828.12-531,021.60-223,649.46

Finding the Fourth Proportional to 384,828.12, 531,021.60 and 223,649.46

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Solution

The fourth proportional to 384,828.12, 531,021.60 and 223,649.46 is: 308,612.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,828.12 : 531,021.60 = 223,649.46 : x
  2. Step 2: Convert to fraction form
    384,828.12/531,021.60 = 223,649.46/x
  3. Step 3: Cross multiply
    384,828.12x = 531,021.60 × 223,649.46
  4. Step 4: Simplify right side
    384,828.12x = 118,762,694,088.34
  5. Step 5: Solve for x
    x = 118,762,694,088.34/384,828.12
  6. Step 6: Final answer
    x = 308,612.31

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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.