Home / 289,088.40-433,630.20-225,961.56

Finding the Fourth Proportional to 289,088.40, 433,630.20 and 225,961.56

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Solution

The fourth proportional to 289,088.40, 433,630.20 and 225,961.56 is: 338,940.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,088.40 : 433,630.20 = 225,961.56 : x
  2. Step 2: Convert to fraction form
    289,088.40/433,630.20 = 225,961.56/x
  3. Step 3: Cross multiply
    289,088.40x = 433,630.20 × 225,961.56
  4. Step 4: Simplify right side
    289,088.40x = 97,983,756,455.11
  5. Step 5: Solve for x
    x = 97,983,756,455.11/289,088.40
  6. Step 6: Final answer
    x = 338,940.46

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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.