Home / 209,631.40-314,447.10-146,645.80

Finding the Fourth Proportional to 209,631.40, 314,447.10 and 146,645.80

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Solution

The fourth proportional to 209,631.40, 314,447.10 and 146,645.80 is: 219,968.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,631.40 : 314,447.10 = 146,645.80 : x
  2. Step 2: Convert to fraction form
    209,631.40/314,447.10 = 146,645.80/x
  3. Step 3: Cross multiply
    209,631.40x = 314,447.10 × 146,645.80
  4. Step 4: Simplify right side
    209,631.40x = 46,112,346,537.18
  5. Step 5: Solve for x
    x = 46,112,346,537.18/209,631.40
  6. Step 6: Final answer
    x = 219,968.70

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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.