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Finding the Fourth Proportional to 288,923.60, 433,255.80 and 131,070.80

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Solution

The fourth proportional to 288,923.60, 433,255.80 and 131,070.80 is: 196,547.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,923.60 : 433,255.80 = 131,070.80 : x
  2. Step 2: Convert to fraction form
    288,923.60/433,255.80 = 131,070.80/x
  3. Step 3: Cross multiply
    288,923.60x = 433,255.80 × 131,070.80
  4. Step 4: Simplify right side
    288,923.60x = 56,787,184,310.64
  5. Step 5: Solve for x
    x = 56,787,184,310.64/288,923.60
  6. Step 6: Final answer
    x = 196,547.41

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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.