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Finding the Fourth Proportional to 253,017.80, 349,426.02 and 218,862.33

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Solution

The fourth proportional to 253,017.80, 349,426.02 and 218,862.33 is: 302,256.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,017.80 : 349,426.02 = 218,862.33 : x
  2. Step 2: Convert to fraction form
    253,017.80/349,426.02 = 218,862.33/x
  3. Step 3: Cross multiply
    253,017.80x = 349,426.02 × 218,862.33
  4. Step 4: Simplify right side
    253,017.80x = 76,476,192,899.83
  5. Step 5: Solve for x
    x = 76,476,192,899.83/253,017.80
  6. Step 6: Final answer
    x = 302,256.18

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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.