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Finding the Fourth Proportional to 383,999.65, 575,999.49 and 103,516.90

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Solution

The fourth proportional to 383,999.65, 575,999.49 and 103,516.90 is: 155,275.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,999.65 : 575,999.49 = 103,516.90 : x
  2. Step 2: Convert to fraction form
    383,999.65/575,999.49 = 103,516.90/x
  3. Step 3: Cross multiply
    383,999.65x = 575,999.49 × 103,516.90
  4. Step 4: Simplify right side
    383,999.65x = 59,625,681,606.38
  5. Step 5: Solve for x
    x = 59,625,681,606.38/383,999.65
  6. Step 6: Final answer
    x = 155,275.35

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1.5x scale

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.