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Finding the Fourth Proportional to 202,821.80, 304,232.70 and 201,655.40

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Solution

The fourth proportional to 202,821.80, 304,232.70 and 201,655.40 is: 302,483.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,821.80 : 304,232.70 = 201,655.40 : x
  2. Step 2: Convert to fraction form
    202,821.80/304,232.70 = 201,655.40/x
  3. Step 3: Cross multiply
    202,821.80x = 304,232.70 × 201,655.40
  4. Step 4: Simplify right side
    202,821.80x = 61,350,166,811.58
  5. Step 5: Solve for x
    x = 61,350,166,811.58/202,821.80
  6. Step 6: Final answer
    x = 302,483.10

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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.