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Finding the Fourth Proportional to 295,189.68, 407,179.80 and 210,334.08

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Solution

The fourth proportional to 295,189.68, 407,179.80 and 210,334.08 is: 290,131.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,189.68 : 407,179.80 = 210,334.08 : x
  2. Step 2: Convert to fraction form
    295,189.68/407,179.80 = 210,334.08/x
  3. Step 3: Cross multiply
    295,189.68x = 407,179.80 × 210,334.08
  4. Step 4: Simplify right side
    295,189.68x = 85,643,788,627.58
  5. Step 5: Solve for x
    x = 85,643,788,627.58/295,189.68
  6. Step 6: Final answer
    x = 290,131.38

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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.