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Finding the Fourth Proportional to 201,852.64, 278,556.80 and 117,018.88

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Solution

The fourth proportional to 201,852.64, 278,556.80 and 117,018.88 is: 161,486.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,852.64 : 278,556.80 = 117,018.88 : x
  2. Step 2: Convert to fraction form
    201,852.64/278,556.80 = 117,018.88/x
  3. Step 3: Cross multiply
    201,852.64x = 278,556.80 × 117,018.88
  4. Step 4: Simplify right side
    201,852.64x = 32,596,404,752.38
  5. Step 5: Solve for x
    x = 32,596,404,752.38/201,852.64
  6. Step 6: Final answer
    x = 161,486.15

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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.