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Finding the Fourth Proportional to 330,458.08, 495,021.84 and 152,720.32

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Solution

The fourth proportional to 330,458.08, 495,021.84 and 152,720.32 is: 228,773.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,458.08 : 495,021.84 = 152,720.32 : x
  2. Step 2: Convert to fraction form
    330,458.08/495,021.84 = 152,720.32/x
  3. Step 3: Cross multiply
    330,458.08x = 495,021.84 × 152,720.32
  4. Step 4: Simplify right side
    330,458.08x = 75,599,893,811.79
  5. Step 5: Solve for x
    x = 75,599,893,811.79/330,458.08
  6. Step 6: Final answer
    x = 228,773.02

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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.