Home / 231,389.94-319,303.50-129,424.74

Finding the Fourth Proportional to 231,389.94, 319,303.50 and 129,424.74

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Solution

The fourth proportional to 231,389.94, 319,303.50 and 129,424.74 is: 178,597.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,389.94 : 319,303.50 = 129,424.74 : x
  2. Step 2: Convert to fraction form
    231,389.94/319,303.50 = 129,424.74/x
  3. Step 3: Cross multiply
    231,389.94x = 319,303.50 × 129,424.74
  4. Step 4: Simplify right side
    231,389.94x = 41,325,772,468.59
  5. Step 5: Solve for x
    x = 41,325,772,468.59/231,389.94
  6. Step 6: Final answer
    x = 178,597.97

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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.