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Finding the Fourth Proportional to 358,100.40, 537,150.60 and 268,870.80

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Solution

The fourth proportional to 358,100.40, 537,150.60 and 268,870.80 is: 403,306.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,100.40 : 537,150.60 = 268,870.80 : x
  2. Step 2: Convert to fraction form
    358,100.40/537,150.60 = 268,870.80/x
  3. Step 3: Cross multiply
    358,100.40x = 537,150.60 × 268,870.80
  4. Step 4: Simplify right side
    358,100.40x = 144,424,111,542.48
  5. Step 5: Solve for x
    x = 144,424,111,542.48/358,100.40
  6. Step 6: Final answer
    x = 403,306.20

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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.