Home / 289,279.40-433,724.70-131,426.60

Finding the Fourth Proportional to 289,279.40, 433,724.70 and 131,426.60

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Solution

The fourth proportional to 289,279.40, 433,724.70 and 131,426.60 is: 197,051.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,279.40 : 433,724.70 = 131,426.60 : x
  2. Step 2: Convert to fraction form
    289,279.40/433,724.70 = 131,426.60/x
  3. Step 3: Cross multiply
    289,279.40x = 433,724.70 × 131,426.60
  4. Step 4: Simplify right side
    289,279.40x = 57,002,962,657.02
  5. Step 5: Solve for x
    x = 57,002,962,657.02/289,279.40
  6. Step 6: Final answer
    x = 197,051.58

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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.