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Finding the Fourth Proportional to 286,521.21, 429,220.24 and 166,326.14

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Solution

The fourth proportional to 286,521.21, 429,220.24 and 166,326.14 is: 249,163.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,521.21 : 429,220.24 = 166,326.14 : x
  2. Step 2: Convert to fraction form
    286,521.21/429,220.24 = 166,326.14/x
  3. Step 3: Cross multiply
    286,521.21x = 429,220.24 × 166,326.14
  4. Step 4: Simplify right side
    286,521.21x = 71,390,543,582.97
  5. Step 5: Solve for x
    x = 71,390,543,582.97/286,521.21
  6. Step 6: Final answer
    x = 249,163.21

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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.