Home / 470,932.20-649,881.92-256,072.40

Finding the Fourth Proportional to 470,932.20, 649,881.92 and 256,072.40

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Solution

The fourth proportional to 470,932.20, 649,881.92 and 256,072.40 is: 353,377.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    470,932.20 : 649,881.92 = 256,072.40 : x
  2. Step 2: Convert to fraction form
    470,932.20/649,881.92 = 256,072.40/x
  3. Step 3: Cross multiply
    470,932.20x = 649,881.92 × 256,072.40
  4. Step 4: Simplify right side
    470,932.20x = 166,416,822,971.01
  5. Step 5: Solve for x
    x = 166,416,822,971.01/470,932.20
  6. Step 6: Final answer
    x = 353,377.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.