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Finding the Fourth Proportional to 380,290.70, 524,636.39 and 229,303.82

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Solution

The fourth proportional to 380,290.70, 524,636.39 and 229,303.82 is: 316,339.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,290.70 : 524,636.39 = 229,303.82 : x
  2. Step 2: Convert to fraction form
    380,290.70/524,636.39 = 229,303.82/x
  3. Step 3: Cross multiply
    380,290.70x = 524,636.39 × 229,303.82
  4. Step 4: Simplify right side
    380,290.70x = 120,301,128,338.01
  5. Step 5: Solve for x
    x = 120,301,128,338.01/380,290.70
  6. Step 6: Final answer
    x = 316,339.92

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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.