Home / 209,629.40-314,444.10-146,643.80

Finding the Fourth Proportional to 209,629.40, 314,444.10 and 146,643.80

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Solution

The fourth proportional to 209,629.40, 314,444.10 and 146,643.80 is: 219,965.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,629.40 : 314,444.10 = 146,643.80 : x
  2. Step 2: Convert to fraction form
    209,629.40/314,444.10 = 146,643.80/x
  3. Step 3: Cross multiply
    209,629.40x = 314,444.10 × 146,643.80
  4. Step 4: Simplify right side
    209,629.40x = 46,111,277,711.58
  5. Step 5: Solve for x
    x = 46,111,277,711.58/209,629.40
  6. Step 6: Final answer
    x = 219,965.70

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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.