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Finding the Fourth Proportional to 330,033.98, 455,434.71 and 179,127.74

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Solution

The fourth proportional to 330,033.98, 455,434.71 and 179,127.74 is: 247,189.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,033.98 : 455,434.71 = 179,127.74 : x
  2. Step 2: Convert to fraction form
    330,033.98/455,434.71 = 179,127.74/x
  3. Step 3: Cross multiply
    330,033.98x = 455,434.71 × 179,127.74
  4. Step 4: Simplify right side
    330,033.98x = 81,580,990,319.86
  5. Step 5: Solve for x
    x = 81,580,990,319.86/330,033.98
  6. Step 6: Final answer
    x = 247,189.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.