Home / 303,366.10-455,049.15-103,638.33

Finding the Fourth Proportional to 303,366.10, 455,049.15 and 103,638.33

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Solution

The fourth proportional to 303,366.10, 455,049.15 and 103,638.33 is: 155,457.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,366.10 : 455,049.15 = 103,638.33 : x
  2. Step 2: Convert to fraction form
    303,366.10/455,049.15 = 103,638.33/x
  3. Step 3: Cross multiply
    303,366.10x = 455,049.15 × 103,638.33
  4. Step 4: Simplify right side
    303,366.10x = 47,160,533,973.92
  5. Step 5: Solve for x
    x = 47,160,533,973.92/303,366.10
  6. Step 6: Final answer
    x = 155,457.50

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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.