Home / 261,631.02-361,119.81-154,272.54

Finding the Fourth Proportional to 261,631.02, 361,119.81 and 154,272.54

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Solution

The fourth proportional to 261,631.02, 361,119.81 and 154,272.54 is: 212,936.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,631.02 : 361,119.81 = 154,272.54 : x
  2. Step 2: Convert to fraction form
    261,631.02/361,119.81 = 154,272.54/x
  3. Step 3: Cross multiply
    261,631.02x = 361,119.81 × 154,272.54
  4. Step 4: Simplify right side
    261,631.02x = 55,710,870,333.02
  5. Step 5: Solve for x
    x = 55,710,870,333.02/261,631.02
  6. Step 6: Final answer
    x = 212,936.79

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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.