Home / 358,990.07-538,549.13-119,118.38

Finding the Fourth Proportional to 358,990.07, 538,549.13 and 119,118.38

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Solution

The fourth proportional to 358,990.07, 538,549.13 and 119,118.38 is: 178,698.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,990.07 : 538,549.13 = 119,118.38 : x
  2. Step 2: Convert to fraction form
    358,990.07/538,549.13 = 119,118.38/x
  3. Step 3: Cross multiply
    358,990.07x = 538,549.13 × 119,118.38
  4. Step 4: Simplify right side
    358,990.07x = 64,151,097,521.06
  5. Step 5: Solve for x
    x = 64,151,097,521.06/358,990.07
  6. Step 6: Final answer
    x = 178,698.81

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.