Home / 354,520.02-489,239.16-193,378.52

Finding the Fourth Proportional to 354,520.02, 489,239.16 and 193,378.52

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Solution

The fourth proportional to 354,520.02, 489,239.16 and 193,378.52 is: 266,863.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,520.02 : 489,239.16 = 193,378.52 : x
  2. Step 2: Convert to fraction form
    354,520.02/489,239.16 = 193,378.52/x
  3. Step 3: Cross multiply
    354,520.02x = 489,239.16 × 193,378.52
  4. Step 4: Simplify right side
    354,520.02x = 94,608,344,686.84
  5. Step 5: Solve for x
    x = 94,608,344,686.84/354,520.02
  6. Step 6: Final answer
    x = 266,863.19

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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.