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Finding the Fourth Proportional to 371,681.53, 557,499.71 and 131,807.32

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Solution

The fourth proportional to 371,681.53, 557,499.71 and 131,807.32 is: 197,702.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,681.53 : 557,499.71 = 131,807.32 : x
  2. Step 2: Convert to fraction form
    371,681.53/557,499.71 = 131,807.32/x
  3. Step 3: Cross multiply
    371,681.53x = 557,499.71 × 131,807.32
  4. Step 4: Simplify right side
    371,681.53x = 73,482,541,611.65
  5. Step 5: Solve for x
    x = 73,482,541,611.65/371,681.53
  6. Step 6: Final answer
    x = 197,702.97

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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.