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Finding the Fourth Proportional to 339,945.04, 509,915.67 and 87,225.04

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Solution

The fourth proportional to 339,945.04, 509,915.67 and 87,225.04 is: 130,837.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,945.04 : 509,915.67 = 87,225.04 : x
  2. Step 2: Convert to fraction form
    339,945.04/509,915.67 = 87,225.04/x
  3. Step 3: Cross multiply
    339,945.04x = 509,915.67 × 87,225.04
  4. Step 4: Simplify right side
    339,945.04x = 44,477,414,712.38
  5. Step 5: Solve for x
    x = 44,477,414,712.38/339,945.04
  6. Step 6: Final answer
    x = 130,837.08

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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.