Home / 315,218.18-472,217.64-264,009.21

Finding the Fourth Proportional to 315,218.18, 472,217.64 and 264,009.21

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Solution

The fourth proportional to 315,218.18, 472,217.64 and 264,009.21 is: 395,503.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,218.18 : 472,217.64 = 264,009.21 : x
  2. Step 2: Convert to fraction form
    315,218.18/472,217.64 = 264,009.21/x
  3. Step 3: Cross multiply
    315,218.18x = 472,217.64 × 264,009.21
  4. Step 4: Simplify right side
    315,218.18x = 124,669,807,273.98
  5. Step 5: Solve for x
    x = 124,669,807,273.98/315,218.18
  6. Step 6: Final answer
    x = 395,503.23

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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.