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Finding the Fourth Proportional to 372,441.42, 513,980.82 and 211,303.26

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Solution

The fourth proportional to 372,441.42, 513,980.82 and 211,303.26 is: 291,605.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,441.42 : 513,980.82 = 211,303.26 : x
  2. Step 2: Convert to fraction form
    372,441.42/513,980.82 = 211,303.26/x
  3. Step 3: Cross multiply
    372,441.42x = 513,980.82 × 211,303.26
  4. Step 4: Simplify right side
    372,441.42x = 108,605,822,843.47
  5. Step 5: Solve for x
    x = 108,605,822,843.47/372,441.42
  6. Step 6: Final answer
    x = 291,605.11

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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.