Home / 380,631.66-525,152.30-219,464.88

Finding the Fourth Proportional to 380,631.66, 525,152.30 and 219,464.88

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Solution

The fourth proportional to 380,631.66, 525,152.30 and 219,464.88 is: 302,792.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,631.66 : 525,152.30 = 219,464.88 : x
  2. Step 2: Convert to fraction form
    380,631.66/525,152.30 = 219,464.88/x
  3. Step 3: Cross multiply
    380,631.66x = 525,152.30 × 219,464.88
  4. Step 4: Simplify right side
    380,631.66x = 115,252,486,501.22
  5. Step 5: Solve for x
    x = 115,252,486,501.22/380,631.66
  6. Step 6: Final answer
    x = 302,792.70

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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.