Home / 281,439.56-388,386.77-152,379.16

Finding the Fourth Proportional to 281,439.56, 388,386.77 and 152,379.16

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Solution

The fourth proportional to 281,439.56, 388,386.77 and 152,379.16 is: 210,283.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,439.56 : 388,386.77 = 152,379.16 : x
  2. Step 2: Convert to fraction form
    281,439.56/388,386.77 = 152,379.16/x
  3. Step 3: Cross multiply
    281,439.56x = 388,386.77 × 152,379.16
  4. Step 4: Simplify right side
    281,439.56x = 59,182,048,034.85
  5. Step 5: Solve for x
    x = 59,182,048,034.85/281,439.56
  6. Step 6: Final answer
    x = 210,283.33

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1.5x scale

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.