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Finding the Fourth Proportional to 340,763.88, 470,334.29 and 211,799.75

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Solution

The fourth proportional to 340,763.88, 470,334.29 and 211,799.75 is: 292,333.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,763.88 : 470,334.29 = 211,799.75 : x
  2. Step 2: Convert to fraction form
    340,763.88/470,334.29 = 211,799.75/x
  3. Step 3: Cross multiply
    340,763.88x = 470,334.29 × 211,799.75
  4. Step 4: Simplify right side
    340,763.88x = 99,616,684,927.11
  5. Step 5: Solve for x
    x = 99,616,684,927.11/340,763.88
  6. Step 6: Final answer
    x = 292,333.46

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1.5x scale

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.