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Finding the Fourth Proportional to 371,897.04, 513,221.04 and 202,131.12

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Solution

The fourth proportional to 371,897.04, 513,221.04 and 202,131.12 is: 278,942.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,897.04 : 513,221.04 = 202,131.12 : x
  2. Step 2: Convert to fraction form
    371,897.04/513,221.04 = 202,131.12/x
  3. Step 3: Cross multiply
    371,897.04x = 513,221.04 × 202,131.12
  4. Step 4: Simplify right side
    371,897.04x = 103,737,943,622.77
  5. Step 5: Solve for x
    x = 103,737,943,622.77/371,897.04
  6. Step 6: Final answer
    x = 278,942.64

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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.