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Finding the Fourth Proportional to 371,296.32, 556,915.32 and 131,434.08

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Solution

The fourth proportional to 371,296.32, 556,915.32 and 131,434.08 is: 197,140.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,296.32 : 556,915.32 = 131,434.08 : x
  2. Step 2: Convert to fraction form
    371,296.32/556,915.32 = 131,434.08/x
  3. Step 3: Cross multiply
    371,296.32x = 556,915.32 × 131,434.08
  4. Step 4: Simplify right side
    371,296.32x = 73,197,652,722.11
  5. Step 5: Solve for x
    x = 73,197,652,722.11/371,296.32
  6. Step 6: Final answer
    x = 197,140.80

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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.