Home / 313,968.72-470,969.40-103,623.06

Finding the Fourth Proportional to 313,968.72, 470,969.40 and 103,623.06

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Solution

The fourth proportional to 313,968.72, 470,969.40 and 103,623.06 is: 155,439.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,968.72 : 470,969.40 = 103,623.06 : x
  2. Step 2: Convert to fraction form
    313,968.72/470,969.40 = 103,623.06/x
  3. Step 3: Cross multiply
    313,968.72x = 470,969.40 × 103,623.06
  4. Step 4: Simplify right side
    313,968.72x = 48,803,290,394.36
  5. Step 5: Solve for x
    x = 48,803,290,394.36/313,968.72
  6. Step 6: Final answer
    x = 155,439.98

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1.5x scale

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.