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Finding the Fourth Proportional to 247,315.70, 370,973.55 and 154,003.70

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Solution

The fourth proportional to 247,315.70, 370,973.55 and 154,003.70 is: 231,005.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,315.70 : 370,973.55 = 154,003.70 : x
  2. Step 2: Convert to fraction form
    247,315.70/370,973.55 = 154,003.70/x
  3. Step 3: Cross multiply
    247,315.70x = 370,973.55 × 154,003.70
  4. Step 4: Simplify right side
    247,315.70x = 57,131,299,302.14
  5. Step 5: Solve for x
    x = 57,131,299,302.14/247,315.70
  6. Step 6: Final answer
    x = 231,005.55

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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.