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Finding the Fourth Proportional to 470,087.68, 648,703.32 and 255,223.20

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Solution

The fourth proportional to 470,087.68, 648,703.32 and 255,223.20 is: 352,198.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    470,087.68 : 648,703.32 = 255,223.20 : x
  2. Step 2: Convert to fraction form
    470,087.68/648,703.32 = 255,223.20/x
  3. Step 3: Cross multiply
    470,087.68x = 648,703.32 × 255,223.20
  4. Step 4: Simplify right side
    470,087.68x = 165,564,137,181.02
  5. Step 5: Solve for x
    x = 165,564,137,181.02/470,087.68
  6. Step 6: Final answer
    x = 352,198.42

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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.