Home / 330,405.15-495,365.29-105,636.23

Finding the Fourth Proportional to 330,405.15, 495,365.29 and 105,636.23

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Solution

The fourth proportional to 330,405.15, 495,365.29 and 105,636.23 is: 158,376.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,405.15 : 495,365.29 = 105,636.23 : x
  2. Step 2: Convert to fraction form
    330,405.15/495,365.29 = 105,636.23/x
  3. Step 3: Cross multiply
    330,405.15x = 495,365.29 × 105,636.23
  4. Step 4: Simplify right side
    330,405.15x = 52,328,520,825.16
  5. Step 5: Solve for x
    x = 52,328,520,825.16/330,405.15
  6. Step 6: Final answer
    x = 158,376.83

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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.