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Finding the Fourth Proportional to 303,447.36, 454,802.40 and 214,726.80

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Solution

The fourth proportional to 303,447.36, 454,802.40 and 214,726.80 is: 321,829.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,447.36 : 454,802.40 = 214,726.80 : x
  2. Step 2: Convert to fraction form
    303,447.36/454,802.40 = 214,726.80/x
  3. Step 3: Cross multiply
    303,447.36x = 454,802.40 × 214,726.80
  4. Step 4: Simplify right side
    303,447.36x = 97,658,263,984.32
  5. Step 5: Solve for x
    x = 97,658,263,984.32/303,447.36
  6. Step 6: Final answer
    x = 321,829.34

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1.5x scale

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.