Home / 289,225.56-433,679.58-89,490.36

Finding the Fourth Proportional to 289,225.56, 433,679.58 and 89,490.36

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Solution

The fourth proportional to 289,225.56, 433,679.58 and 89,490.36 is: 134,186.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,225.56 : 433,679.58 = 89,490.36 : x
  2. Step 2: Convert to fraction form
    289,225.56/433,679.58 = 89,490.36/x
  3. Step 3: Cross multiply
    289,225.56x = 433,679.58 × 89,490.36
  4. Step 4: Simplify right side
    289,225.56x = 38,810,141,738.85
  5. Step 5: Solve for x
    x = 38,810,141,738.85/289,225.56
  6. Step 6: Final answer
    x = 134,186.42

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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.