Home / 289,261.10-433,762.05-131,408.30

Finding the Fourth Proportional to 289,261.10, 433,762.05 and 131,408.30

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Solution

The fourth proportional to 289,261.10, 433,762.05 and 131,408.30 is: 197,053.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,261.10 : 433,762.05 = 131,408.30 : x
  2. Step 2: Convert to fraction form
    289,261.10/433,762.05 = 131,408.30/x
  3. Step 3: Cross multiply
    289,261.10x = 433,762.05 × 131,408.30
  4. Step 4: Simplify right side
    289,261.10x = 56,999,933,595.02
  5. Step 5: Solve for x
    x = 56,999,933,595.02/289,261.10
  6. Step 6: Final answer
    x = 197,053.57

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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.