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Finding the Fourth Proportional to 305,477.40, 421,670.76 and 184,623.24

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Solution

The fourth proportional to 305,477.40, 421,670.76 and 184,623.24 is: 254,847.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,477.40 : 421,670.76 = 184,623.24 : x
  2. Step 2: Convert to fraction form
    305,477.40/421,670.76 = 184,623.24/x
  3. Step 3: Cross multiply
    305,477.40x = 421,670.76 × 184,623.24
  4. Step 4: Simplify right side
    305,477.40x = 77,850,221,924.46
  5. Step 5: Solve for x
    x = 77,850,221,924.46/305,477.40
  6. Step 6: Final answer
    x = 254,847.73

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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.