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Finding the Fourth Proportional to 202,860.30, 304,290.45 and 84,492.30

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Solution

The fourth proportional to 202,860.30, 304,290.45 and 84,492.30 is: 126,738.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,860.30 : 304,290.45 = 84,492.30 : x
  2. Step 2: Convert to fraction form
    202,860.30/304,290.45 = 84,492.30/x
  3. Step 3: Cross multiply
    202,860.30x = 304,290.45 × 84,492.30
  4. Step 4: Simplify right side
    202,860.30x = 25,710,199,988.54
  5. Step 5: Solve for x
    x = 25,710,199,988.54/202,860.30
  6. Step 6: Final answer
    x = 126,738.45

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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.