Home / 330,403.08-495,362.23-105,634.16

Finding the Fourth Proportional to 330,403.08, 495,362.23 and 105,634.16

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Solution

The fourth proportional to 330,403.08, 495,362.23 and 105,634.16 is: 158,373.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,403.08 : 495,362.23 = 105,634.16 : x
  2. Step 2: Convert to fraction form
    330,403.08/495,362.23 = 105,634.16/x
  3. Step 3: Cross multiply
    330,403.08x = 495,362.23 × 105,634.16
  4. Step 4: Simplify right side
    330,403.08x = 52,327,173,061.78
  5. Step 5: Solve for x
    x = 52,327,173,061.78/330,403.08
  6. Step 6: Final answer
    x = 158,373.74

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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.