Home / 342,918.45-515,168.23-328,746.93

Finding the Fourth Proportional to 342,918.45, 515,168.23 and 328,746.93

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Solution

The fourth proportional to 342,918.45, 515,168.23 and 328,746.93 is: 493,878.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,918.45 : 515,168.23 = 328,746.93 : x
  2. Step 2: Convert to fraction form
    342,918.45/515,168.23 = 328,746.93/x
  3. Step 3: Cross multiply
    342,918.45x = 515,168.23 × 328,746.93
  4. Step 4: Simplify right side
    342,918.45x = 169,359,974,046.03
  5. Step 5: Solve for x
    x = 169,359,974,046.03/342,918.45
  6. Step 6: Final answer
    x = 493,878.28

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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.