Home / 368,128.28-507,846.45-215,172.95

Finding the Fourth Proportional to 368,128.28, 507,846.45 and 215,172.95

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Solution

The fourth proportional to 368,128.28, 507,846.45 and 215,172.95 is: 296,838.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,128.28 : 507,846.45 = 215,172.95 : x
  2. Step 2: Convert to fraction form
    368,128.28/507,846.45 = 215,172.95/x
  3. Step 3: Cross multiply
    368,128.28x = 507,846.45 × 215,172.95
  4. Step 4: Simplify right side
    368,128.28x = 109,274,816,254.30
  5. Step 5: Solve for x
    x = 109,274,816,254.30/368,128.28
  6. Step 6: Final answer
    x = 296,838.97

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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.