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Finding the Fourth Proportional to 291,271.70, 436,907.55 and 197,959.70

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Solution

The fourth proportional to 291,271.70, 436,907.55 and 197,959.70 is: 296,939.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,271.70 : 436,907.55 = 197,959.70 : x
  2. Step 2: Convert to fraction form
    291,271.70/436,907.55 = 197,959.70/x
  3. Step 3: Cross multiply
    291,271.70x = 436,907.55 × 197,959.70
  4. Step 4: Simplify right side
    291,271.70x = 86,490,087,525.74
  5. Step 5: Solve for x
    x = 86,490,087,525.74/291,271.70
  6. Step 6: Final answer
    x = 296,939.55

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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.