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Finding the Fourth Proportional to 255,485.80, 352,303.16 and 190,853.74

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Solution

The fourth proportional to 255,485.80, 352,303.16 and 190,853.74 is: 263,178.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,485.80 : 352,303.16 = 190,853.74 : x
  2. Step 2: Convert to fraction form
    255,485.80/352,303.16 = 190,853.74/x
  3. Step 3: Cross multiply
    255,485.80x = 352,303.16 × 190,853.74
  4. Step 4: Simplify right side
    255,485.80x = 67,238,375,699.82
  5. Step 5: Solve for x
    x = 67,238,375,699.82/255,485.80
  6. Step 6: Final answer
    x = 263,178.52

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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.