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Finding the Fourth Proportional to 259,274.60, 357,964.08 and 211,641.20

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Solution

The fourth proportional to 259,274.60, 357,964.08 and 211,641.20 is: 292,199.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,274.60 : 357,964.08 = 211,641.20 : x
  2. Step 2: Convert to fraction form
    259,274.60/357,964.08 = 211,641.20/x
  3. Step 3: Cross multiply
    259,274.60x = 357,964.08 × 211,641.20
  4. Step 4: Simplify right side
    259,274.60x = 75,759,947,448.10
  5. Step 5: Solve for x
    x = 75,759,947,448.10/259,274.60
  6. Step 6: Final answer
    x = 292,199.65

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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.