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Finding the Fourth Proportional to 351,391.44, 485,737.32 and 313,526.22

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Solution

The fourth proportional to 351,391.44, 485,737.32 and 313,526.22 is: 433,395.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,391.44 : 485,737.32 = 313,526.22 : x
  2. Step 2: Convert to fraction form
    351,391.44/485,737.32 = 313,526.22/x
  3. Step 3: Cross multiply
    351,391.44x = 485,737.32 × 313,526.22
  4. Step 4: Simplify right side
    351,391.44x = 152,291,385,852.53
  5. Step 5: Solve for x
    x = 152,291,385,852.53/351,391.44
  6. Step 6: Final answer
    x = 433,395.26

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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.