Home / 319,170.16-440,441.56-173,972.75

Finding the Fourth Proportional to 319,170.16, 440,441.56 and 173,972.75

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Solution

The fourth proportional to 319,170.16, 440,441.56 and 173,972.75 is: 240,075.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,170.16 : 440,441.56 = 173,972.75 : x
  2. Step 2: Convert to fraction form
    319,170.16/440,441.56 = 173,972.75/x
  3. Step 3: Cross multiply
    319,170.16x = 440,441.56 × 173,972.75
  4. Step 4: Simplify right side
    319,170.16x = 76,624,828,424.59
  5. Step 5: Solve for x
    x = 76,624,828,424.59/319,170.16
  6. Step 6: Final answer
    x = 240,075.16

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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.