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Finding the Fourth Proportional to 230,041.88, 317,384.52 and 129,420.44

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Solution

The fourth proportional to 230,041.88, 317,384.52 and 129,420.44 is: 178,558.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,041.88 : 317,384.52 = 129,420.44 : x
  2. Step 2: Convert to fraction form
    230,041.88/317,384.52 = 129,420.44/x
  3. Step 3: Cross multiply
    230,041.88x = 317,384.52 × 129,420.44
  4. Step 4: Simplify right side
    230,041.88x = 41,076,044,227.59
  5. Step 5: Solve for x
    x = 41,076,044,227.59/230,041.88
  6. Step 6: Final answer
    x = 178,558.98

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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.