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Finding the Fourth Proportional to 253,049.57, 379,430.83 and 103,114.32

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Solution

The fourth proportional to 253,049.57, 379,430.83 and 103,114.32 is: 154,612.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,049.57 : 379,430.83 = 103,114.32 : x
  2. Step 2: Convert to fraction form
    253,049.57/379,430.83 = 103,114.32/x
  3. Step 3: Cross multiply
    253,049.57x = 379,430.83 × 103,114.32
  4. Step 4: Simplify right side
    253,049.57x = 39,124,750,728.51
  5. Step 5: Solve for x
    x = 39,124,750,728.51/253,049.57
  6. Step 6: Final answer
    x = 154,612.99

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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.