Home / 380,734.54-525,347.05-217,316.43

Finding the Fourth Proportional to 380,734.54, 525,347.05 and 217,316.43

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Solution

The fourth proportional to 380,734.54, 525,347.05 and 217,316.43 is: 299,858.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,734.54 : 525,347.05 = 217,316.43 : x
  2. Step 2: Convert to fraction form
    380,734.54/525,347.05 = 217,316.43/x
  3. Step 3: Cross multiply
    380,734.54x = 525,347.05 × 217,316.43
  4. Step 4: Simplify right side
    380,734.54x = 114,166,545,281.21
  5. Step 5: Solve for x
    x = 114,166,545,281.21/380,734.54
  6. Step 6: Final answer
    x = 299,858.65

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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.