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Finding the Fourth Proportional to 245,484.24, 338,765.04 and 138,054.24

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Solution

The fourth proportional to 245,484.24, 338,765.04 and 138,054.24 is: 190,513.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,484.24 : 338,765.04 = 138,054.24 : x
  2. Step 2: Convert to fraction form
    245,484.24/338,765.04 = 138,054.24/x
  3. Step 3: Cross multiply
    245,484.24x = 338,765.04 × 138,054.24
  4. Step 4: Simplify right side
    245,484.24x = 46,767,950,135.77
  5. Step 5: Solve for x
    x = 46,767,950,135.77/245,484.24
  6. Step 6: Final answer
    x = 190,513.05

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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.