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Finding the Fourth Proportional to 289,036.40, 433,554.60 and 164,620.40

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Solution

The fourth proportional to 289,036.40, 433,554.60 and 164,620.40 is: 246,930.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,036.40 : 433,554.60 = 164,620.40 : x
  2. Step 2: Convert to fraction form
    289,036.40/433,554.60 = 164,620.40/x
  3. Step 3: Cross multiply
    289,036.40x = 433,554.60 × 164,620.40
  4. Step 4: Simplify right side
    289,036.40x = 71,371,931,673.84
  5. Step 5: Solve for x
    x = 71,371,931,673.84/289,036.40
  6. Step 6: Final answer
    x = 246,930.60

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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.