Home / 315,550.14-473,208.48-90,834.72

Finding the Fourth Proportional to 315,550.14, 473,208.48 and 90,834.72

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Solution

The fourth proportional to 315,550.14, 473,208.48 and 90,834.72 is: 136,218.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,550.14 : 473,208.48 = 90,834.72 : x
  2. Step 2: Convert to fraction form
    315,550.14/473,208.48 = 90,834.72/x
  3. Step 3: Cross multiply
    315,550.14x = 473,208.48 × 90,834.72
  4. Step 4: Simplify right side
    315,550.14x = 42,983,759,782.43
  5. Step 5: Solve for x
    x = 42,983,759,782.43/315,550.14
  6. Step 6: Final answer
    x = 136,218.48

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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.