Home / 380,931.24-525,682.20-208,847.16

Finding the Fourth Proportional to 380,931.24, 525,682.20 and 208,847.16

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Solution

The fourth proportional to 380,931.24, 525,682.20 and 208,847.16 is: 288,207.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,931.24 : 525,682.20 = 208,847.16 : x
  2. Step 2: Convert to fraction form
    380,931.24/525,682.20 = 208,847.16/x
  3. Step 3: Cross multiply
    380,931.24x = 525,682.20 × 208,847.16
  4. Step 4: Simplify right side
    380,931.24x = 109,787,234,532.55
  5. Step 5: Solve for x
    x = 109,787,234,532.55/380,931.24
  6. Step 6: Final answer
    x = 288,207.48

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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.