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Finding the Fourth Proportional to 380,549.22, 525,155.58 and 208,468.86

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Solution

The fourth proportional to 380,549.22, 525,155.58 and 208,468.86 is: 287,685.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,549.22 : 525,155.58 = 208,468.86 : x
  2. Step 2: Convert to fraction form
    380,549.22/525,155.58 = 208,468.86/x
  3. Step 3: Cross multiply
    380,549.22x = 525,155.58 × 208,468.86
  4. Step 4: Simplify right side
    380,549.22x = 109,478,585,085.24
  5. Step 5: Solve for x
    x = 109,478,585,085.24/380,549.22
  6. Step 6: Final answer
    x = 287,685.74

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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.