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Finding the Fourth Proportional to 371,055.01, 512,056.90 and 201,289.13

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Solution

The fourth proportional to 371,055.01, 512,056.90 and 201,289.13 is: 277,779.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,055.01 : 512,056.90 = 201,289.13 : x
  2. Step 2: Convert to fraction form
    371,055.01/512,056.90 = 201,289.13/x
  3. Step 3: Cross multiply
    371,055.01x = 512,056.90 × 201,289.13
  4. Step 4: Simplify right side
    371,055.01x = 103,071,487,911.50
  5. Step 5: Solve for x
    x = 103,071,487,911.50/371,055.01
  6. Step 6: Final answer
    x = 277,779.53

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.