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Finding the Fourth Proportional to 213,283.49, 318,542.45 and 193,253.00

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Solution

The fourth proportional to 213,283.49, 318,542.45 and 193,253.00 is: 288,626.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,283.49 : 318,542.45 = 193,253.00 : x
  2. Step 2: Convert to fraction form
    213,283.49/318,542.45 = 193,253.00/x
  3. Step 3: Cross multiply
    213,283.49x = 318,542.45 × 193,253.00
  4. Step 4: Simplify right side
    213,283.49x = 61,559,281,530.87
  5. Step 5: Solve for x
    x = 61,559,281,530.87/213,283.49
  6. Step 6: Final answer
    x = 288,626.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.