Home / 290,234.07-434,907.23-121,662.47

Finding the Fourth Proportional to 290,234.07, 434,907.23 and 121,662.47

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Solution

The fourth proportional to 290,234.07, 434,907.23 and 121,662.47 is: 182,307.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,234.07 : 434,907.23 = 121,662.47 : x
  2. Step 2: Convert to fraction form
    290,234.07/434,907.23 = 121,662.47/x
  3. Step 3: Cross multiply
    290,234.07x = 434,907.23 × 121,662.47
  4. Step 4: Simplify right side
    290,234.07x = 52,911,888,301.61
  5. Step 5: Solve for x
    x = 52,911,888,301.61/290,234.07
  6. Step 6: Final answer
    x = 182,307.64

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.