Home / 319,095.98-440,344.32-173,905.49

Finding the Fourth Proportional to 319,095.98, 440,344.32 and 173,905.49

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Solution

The fourth proportional to 319,095.98, 440,344.32 and 173,905.49 is: 239,985.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,095.98 : 440,344.32 = 173,905.49 : x
  2. Step 2: Convert to fraction form
    319,095.98/440,344.32 = 173,905.49/x
  3. Step 3: Cross multiply
    319,095.98x = 440,344.32 × 173,905.49
  4. Step 4: Simplify right side
    319,095.98x = 76,578,294,738.32
  5. Step 5: Solve for x
    x = 76,578,294,738.32/319,095.98
  6. Step 6: Final answer
    x = 239,985.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.