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Finding the Fourth Proportional to 212,370.28, 318,607.26 and 64,626.28

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Solution

The fourth proportional to 212,370.28, 318,607.26 and 64,626.28 is: 96,955.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,370.28 : 318,607.26 = 64,626.28 : x
  2. Step 2: Convert to fraction form
    212,370.28/318,607.26 = 64,626.28/x
  3. Step 3: Cross multiply
    212,370.28x = 318,607.26 × 64,626.28
  4. Step 4: Simplify right side
    212,370.28x = 20,590,401,994.79
  5. Step 5: Solve for x
    x = 20,590,401,994.79/212,370.28
  6. Step 6: Final answer
    x = 96,955.20

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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.