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Finding the Fourth Proportional to 310,302.04, 465,453.09 and 99,939.98

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Solution

The fourth proportional to 310,302.04, 465,453.09 and 99,939.98 is: 149,909.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,302.04 : 465,453.09 = 99,939.98 : x
  2. Step 2: Convert to fraction form
    310,302.04/465,453.09 = 99,939.98/x
  3. Step 3: Cross multiply
    310,302.04x = 465,453.09 × 99,939.98
  4. Step 4: Simplify right side
    310,302.04x = 46,517,372,005.84
  5. Step 5: Solve for x
    x = 46,517,372,005.84/310,302.04
  6. Step 6: Final answer
    x = 149,909.98

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1.5x scale

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.