Home / 278,445.33-384,254.82-151,120.96

Finding the Fourth Proportional to 278,445.33, 384,254.82 and 151,120.96

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Solution

The fourth proportional to 278,445.33, 384,254.82 and 151,120.96 is: 208,547.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,445.33 : 384,254.82 = 151,120.96 : x
  2. Step 2: Convert to fraction form
    278,445.33/384,254.82 = 151,120.96/x
  3. Step 3: Cross multiply
    278,445.33x = 384,254.82 × 151,120.96
  4. Step 4: Simplify right side
    278,445.33x = 58,068,956,322.39
  5. Step 5: Solve for x
    x = 58,068,956,322.39/278,445.33
  6. Step 6: Final answer
    x = 208,547.06

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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.