Home / 253,007.03-379,510.59-103,317.81

Finding the Fourth Proportional to 253,007.03, 379,510.59 and 103,317.81

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Solution

The fourth proportional to 253,007.03, 379,510.59 and 103,317.81 is: 154,976.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,007.03 : 379,510.59 = 103,317.81 : x
  2. Step 2: Convert to fraction form
    253,007.03/379,510.59 = 103,317.81/x
  3. Step 3: Cross multiply
    253,007.03x = 379,510.59 × 103,317.81
  4. Step 4: Simplify right side
    253,007.03x = 39,210,203,030.61
  5. Step 5: Solve for x
    x = 39,210,203,030.61/253,007.03
  6. Step 6: Final answer
    x = 154,976.74

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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.