Home / 238,780.36-358,047.28-70,278.83

Finding the Fourth Proportional to 238,780.36, 358,047.28 and 70,278.83

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Solution

The fourth proportional to 238,780.36, 358,047.28 and 70,278.83 is: 105,381.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,780.36 : 358,047.28 = 70,278.83 : x
  2. Step 2: Convert to fraction form
    238,780.36/358,047.28 = 70,278.83/x
  3. Step 3: Cross multiply
    238,780.36x = 358,047.28 × 70,278.83
  4. Step 4: Simplify right side
    238,780.36x = 25,163,143,923.08
  5. Step 5: Solve for x
    x = 25,163,143,923.08/238,780.36
  6. Step 6: Final answer
    x = 105,381.97

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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.