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Finding the Fourth Proportional to 380,357.24, 570,655.22 and 228,728.84

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Solution

The fourth proportional to 380,357.24, 570,655.22 and 228,728.84 is: 343,165.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,357.24 : 570,655.22 = 228,728.84 : x
  2. Step 2: Convert to fraction form
    380,357.24/570,655.22 = 228,728.84/x
  3. Step 3: Cross multiply
    380,357.24x = 570,655.22 × 228,728.84
  4. Step 4: Simplify right side
    380,357.24x = 130,525,306,510.55
  5. Step 5: Solve for x
    x = 130,525,306,510.55/380,357.24
  6. Step 6: Final answer
    x = 343,165.04

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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.