Home / 274,547.32-378,871.44-153,688.46

Finding the Fourth Proportional to 274,547.32, 378,871.44 and 153,688.46

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Solution

The fourth proportional to 274,547.32, 378,871.44 and 153,688.46 is: 212,087.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,547.32 : 378,871.44 = 153,688.46 : x
  2. Step 2: Convert to fraction form
    274,547.32/378,871.44 = 153,688.46/x
  3. Step 3: Cross multiply
    274,547.32x = 378,871.44 × 153,688.46
  4. Step 4: Simplify right side
    274,547.32x = 58,228,169,093.75
  5. Step 5: Solve for x
    x = 58,228,169,093.75/274,547.32
  6. Step 6: Final answer
    x = 212,087.91

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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.