Home / 230,548.34-318,156.09-128,573.92

Finding the Fourth Proportional to 230,548.34, 318,156.09 and 128,573.92

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Solution

The fourth proportional to 230,548.34, 318,156.09 and 128,573.92 is: 177,431.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,548.34 : 318,156.09 = 128,573.92 : x
  2. Step 2: Convert to fraction form
    230,548.34/318,156.09 = 128,573.92/x
  3. Step 3: Cross multiply
    230,548.34x = 318,156.09 × 128,573.92
  4. Step 4: Simplify right side
    230,548.34x = 40,906,575,663.17
  5. Step 5: Solve for x
    x = 40,906,575,663.17/230,548.34
  6. Step 6: Final answer
    x = 177,431.66

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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.