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Finding the Fourth Proportional to 305,490.79, 458,267.37 and 105,810.81

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Solution

The fourth proportional to 305,490.79, 458,267.37 and 105,810.81 is: 158,727.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,490.79 : 458,267.37 = 105,810.81 : x
  2. Step 2: Convert to fraction form
    305,490.79/458,267.37 = 105,810.81/x
  3. Step 3: Cross multiply
    305,490.79x = 458,267.37 × 105,810.81
  4. Step 4: Simplify right side
    305,490.79x = 48,489,640,096.16
  5. Step 5: Solve for x
    x = 48,489,640,096.16/305,490.79
  6. Step 6: Final answer
    x = 158,727.01

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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.