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Finding the Fourth Proportional to 152,630.40, 228,945.60 and 40,310.40

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Solution

The fourth proportional to 152,630.40, 228,945.60 and 40,310.40 is: 60,465.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,630.40 : 228,945.60 = 40,310.40 : x
  2. Step 2: Convert to fraction form
    152,630.40/228,945.60 = 40,310.40/x
  3. Step 3: Cross multiply
    152,630.40x = 228,945.60 × 40,310.40
  4. Step 4: Simplify right side
    152,630.40x = 9,228,888,714.24
  5. Step 5: Solve for x
    x = 9,228,888,714.24/152,630.40
  6. Step 6: Final answer
    x = 60,465.60

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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.