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Finding the Fourth Proportional to 400,399.74, 552,527.93 and 219,075.57

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Solution

The fourth proportional to 400,399.74, 552,527.93 and 219,075.57 is: 302,311.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,399.74 : 552,527.93 = 219,075.57 : x
  2. Step 2: Convert to fraction form
    400,399.74/552,527.93 = 219,075.57/x
  3. Step 3: Cross multiply
    400,399.74x = 552,527.93 × 219,075.57
  4. Step 4: Simplify right side
    400,399.74x = 121,045,371,205.67
  5. Step 5: Solve for x
    x = 121,045,371,205.67/400,399.74
  6. Step 6: Final answer
    x = 302,311.31

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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.