Home / 289,129.80-433,403.10-131,471.40

Finding the Fourth Proportional to 289,129.80, 433,403.10 and 131,471.40

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Solution

The fourth proportional to 289,129.80, 433,403.10 and 131,471.40 is: 197,074.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,129.80 : 433,403.10 = 131,471.40 : x
  2. Step 2: Convert to fraction form
    289,129.80/433,403.10 = 131,471.40/x
  3. Step 3: Cross multiply
    289,129.80x = 433,403.10 × 131,471.40
  4. Step 4: Simplify right side
    289,129.80x = 56,980,112,321.34
  5. Step 5: Solve for x
    x = 56,980,112,321.34/289,129.80
  6. Step 6: Final answer
    x = 197,074.51

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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.