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Finding the Fourth Proportional to 240,803.80, 361,313.70 and 83,145.40

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Solution

The fourth proportional to 240,803.80, 361,313.70 and 83,145.40 is: 124,755.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,803.80 : 361,313.70 = 83,145.40 : x
  2. Step 2: Convert to fraction form
    240,803.80/361,313.70 = 83,145.40/x
  3. Step 3: Cross multiply
    240,803.80x = 361,313.70 × 83,145.40
  4. Step 4: Simplify right side
    240,803.80x = 30,041,572,111.98
  5. Step 5: Solve for x
    x = 30,041,572,111.98/240,803.80
  6. Step 6: Final answer
    x = 124,755.39

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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.