Home / 230,436.72-318,012.48-128,462.16

Finding the Fourth Proportional to 230,436.72, 318,012.48 and 128,462.16

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Solution

The fourth proportional to 230,436.72, 318,012.48 and 128,462.16 is: 177,283.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,436.72 : 318,012.48 = 128,462.16 : x
  2. Step 2: Convert to fraction form
    230,436.72/318,012.48 = 128,462.16/x
  3. Step 3: Cross multiply
    230,436.72x = 318,012.48 × 128,462.16
  4. Step 4: Simplify right side
    230,436.72x = 40,852,570,087.76
  5. Step 5: Solve for x
    x = 40,852,570,087.76/230,436.72
  6. Step 6: Final answer
    x = 177,283.25

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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.