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Finding the Fourth Proportional to 310,300.56, 465,446.52 and 99,939.60

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Solution

The fourth proportional to 310,300.56, 465,446.52 and 99,939.60 is: 149,908.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,300.56 : 465,446.52 = 99,939.60 : x
  2. Step 2: Convert to fraction form
    310,300.56/465,446.52 = 99,939.60/x
  3. Step 3: Cross multiply
    310,300.56x = 465,446.52 × 99,939.60
  4. Step 4: Simplify right side
    310,300.56x = 46,516,539,030.19
  5. Step 5: Solve for x
    x = 46,516,539,030.19/310,300.56
  6. Step 6: Final answer
    x = 149,908.01

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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.