Home / 384,187.25-529,685.53-315,021.89

Finding the Fourth Proportional to 384,187.25, 529,685.53 and 315,021.89

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Solution

The fourth proportional to 384,187.25, 529,685.53 and 315,021.89 is: 434,326.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,187.25 : 529,685.53 = 315,021.89 : x
  2. Step 2: Convert to fraction form
    384,187.25/529,685.53 = 315,021.89/x
  3. Step 3: Cross multiply
    384,187.25x = 529,685.53 × 315,021.89
  4. Step 4: Simplify right side
    384,187.25x = 166,862,537,302.91
  5. Step 5: Solve for x
    x = 166,862,537,302.91/384,187.25
  6. Step 6: Final answer
    x = 434,326.06

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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.