Home / 397,836.48-549,061.02-223,435.28

Finding the Fourth Proportional to 397,836.48, 549,061.02 and 223,435.28

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Solution

The fourth proportional to 397,836.48, 549,061.02 and 223,435.28 is: 308,366.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,836.48 : 549,061.02 = 223,435.28 : x
  2. Step 2: Convert to fraction form
    397,836.48/549,061.02 = 223,435.28/x
  3. Step 3: Cross multiply
    397,836.48x = 549,061.02 × 223,435.28
  4. Step 4: Simplify right side
    397,836.48x = 122,679,599,995.48
  5. Step 5: Solve for x
    x = 122,679,599,995.48/397,836.48
  6. Step 6: Final answer
    x = 308,366.89

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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.