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Finding the Fourth Proportional to 353,510.56, 487,759.50 and 208,322.27

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Solution

The fourth proportional to 353,510.56, 487,759.50 and 208,322.27 is: 287,434.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,510.56 : 487,759.50 = 208,322.27 : x
  2. Step 2: Convert to fraction form
    353,510.56/487,759.50 = 208,322.27/x
  3. Step 3: Cross multiply
    353,510.56x = 487,759.50 × 208,322.27
  4. Step 4: Simplify right side
    353,510.56x = 101,611,166,254.07
  5. Step 5: Solve for x
    x = 101,611,166,254.07/353,510.56
  6. Step 6: Final answer
    x = 287,434.60

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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.