Home / 387,376.48-534,485.64-226,139.32

Finding the Fourth Proportional to 387,376.48, 534,485.64 and 226,139.32

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Solution

The fourth proportional to 387,376.48, 534,485.64 and 226,139.32 is: 312,017.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,376.48 : 534,485.64 = 226,139.32 : x
  2. Step 2: Convert to fraction form
    387,376.48/534,485.64 = 226,139.32/x
  3. Step 3: Cross multiply
    387,376.48x = 534,485.64 × 226,139.32
  4. Step 4: Simplify right side
    387,376.48x = 120,868,219,179.37
  5. Step 5: Solve for x
    x = 120,868,219,179.37/387,376.48
  6. Step 6: Final answer
    x = 312,017.44

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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.