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Finding the Fourth Proportional to 644,677.40, 967,015.92 and 201,445.40

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Solution

The fourth proportional to 644,677.40, 967,015.92 and 201,445.40 is: 302,168.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,677.40 : 967,015.92 = 201,445.40 : x
  2. Step 2: Convert to fraction form
    644,677.40/967,015.92 = 201,445.40/x
  3. Step 3: Cross multiply
    644,677.40x = 967,015.92 × 201,445.40
  4. Step 4: Simplify right side
    644,677.40x = 194,800,908,810.77
  5. Step 5: Solve for x
    x = 194,800,908,810.77/644,677.40
  6. Step 6: Final answer
    x = 302,168.04

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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.