Home / 342,345.04-472,427.32-189,379.24

Finding the Fourth Proportional to 342,345.04, 472,427.32 and 189,379.24

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Solution

The fourth proportional to 342,345.04, 472,427.32 and 189,379.24 is: 261,338.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,345.04 : 472,427.32 = 189,379.24 : x
  2. Step 2: Convert to fraction form
    342,345.04/472,427.32 = 189,379.24/x
  3. Step 3: Cross multiply
    342,345.04x = 472,427.32 × 189,379.24
  4. Step 4: Simplify right side
    342,345.04x = 89,467,926,816.84
  5. Step 5: Solve for x
    x = 89,467,926,816.84/342,345.04
  6. Step 6: Final answer
    x = 261,338.46

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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.