Home / 248,638.12-343,127.28-135,468.16

Finding the Fourth Proportional to 248,638.12, 343,127.28 and 135,468.16

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Solution

The fourth proportional to 248,638.12, 343,127.28 and 135,468.16 is: 186,949.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,638.12 : 343,127.28 = 135,468.16 : x
  2. Step 2: Convert to fraction form
    248,638.12/343,127.28 = 135,468.16/x
  3. Step 3: Cross multiply
    248,638.12x = 343,127.28 × 135,468.16
  4. Step 4: Simplify right side
    248,638.12x = 46,482,821,267.40
  5. Step 5: Solve for x
    x = 46,482,821,267.40/248,638.12
  6. Step 6: Final answer
    x = 186,949.70

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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.