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Finding the Fourth Proportional to 289,250.64, 433,873.44 and 78,888.24

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Solution

The fourth proportional to 289,250.64, 433,873.44 and 78,888.24 is: 118,331.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,250.64 : 433,873.44 = 78,888.24 : x
  2. Step 2: Convert to fraction form
    289,250.64/433,873.44 = 78,888.24/x
  3. Step 3: Cross multiply
    289,250.64x = 433,873.44 × 78,888.24
  4. Step 4: Simplify right side
    289,250.64x = 34,227,512,064.35
  5. Step 5: Solve for x
    x = 34,227,512,064.35/289,250.64
  6. Step 6: Final answer
    x = 118,331.67

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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.