Home / 268,128.96-402,245.28-101,904

Finding the Fourth Proportional to 268,128.96, 402,245.28 and 101,904

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Solution

The fourth proportional to 268,128.96, 402,245.28 and 101,904 is: 152,875.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,128.96 : 402,245.28 = 101,904 : x
  2. Step 2: Convert to fraction form
    268,128.96/402,245.28 = 101,904/x
  3. Step 3: Cross multiply
    268,128.96x = 402,245.28 × 101,904
  4. Step 4: Simplify right side
    268,128.96x = 40,990,403,013.12
  5. Step 5: Solve for x
    x = 40,990,403,013.12/268,128.96
  6. Step 6: Final answer
    x = 152,875.70

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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.