Home / 319,016.48-478,571.98-102,802.74

Finding the Fourth Proportional to 319,016.48, 478,571.98 and 102,802.74

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Solution

The fourth proportional to 319,016.48, 478,571.98 and 102,802.74 is: 154,219.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,016.48 : 478,571.98 = 102,802.74 : x
  2. Step 2: Convert to fraction form
    319,016.48/478,571.98 = 102,802.74/x
  3. Step 3: Cross multiply
    319,016.48x = 478,571.98 × 102,802.74
  4. Step 4: Simplify right side
    319,016.48x = 49,198,513,443.98
  5. Step 5: Solve for x
    x = 49,198,513,443.98/319,016.48
  6. Step 6: Final answer
    x = 154,219.35

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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.