Home / 313,922.20-470,883.30-288,117.40

Finding the Fourth Proportional to 313,922.20, 470,883.30 and 288,117.40

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Solution

The fourth proportional to 313,922.20, 470,883.30 and 288,117.40 is: 432,176.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,922.20 : 470,883.30 = 288,117.40 : x
  2. Step 2: Convert to fraction form
    313,922.20/470,883.30 = 288,117.40/x
  3. Step 3: Cross multiply
    313,922.20x = 470,883.30 × 288,117.40
  4. Step 4: Simplify right side
    313,922.20x = 135,669,672,099.42
  5. Step 5: Solve for x
    x = 135,669,672,099.42/313,922.20
  6. Step 6: Final answer
    x = 432,176.10

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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.