Home / 445,721.92-668,681.28-165,239.17

Finding the Fourth Proportional to 445,721.92, 668,681.28 and 165,239.17

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Solution

The fourth proportional to 445,721.92, 668,681.28 and 165,239.17 is: 247,895.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,721.92 : 668,681.28 = 165,239.17 : x
  2. Step 2: Convert to fraction form
    445,721.92/668,681.28 = 165,239.17/x
  3. Step 3: Cross multiply
    445,721.92x = 668,681.28 × 165,239.17
  4. Step 4: Simplify right side
    445,721.92x = 110,492,338,030.03
  5. Step 5: Solve for x
    x = 110,492,338,030.03/445,721.92
  6. Step 6: Final answer
    x = 247,895.23

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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.