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Finding the Fourth Proportional to 370,860.72, 556,151.40 and 134,144.88

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Solution

The fourth proportional to 370,860.72, 556,151.40 and 134,144.88 is: 201,166.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,860.72 : 556,151.40 = 134,144.88 : x
  2. Step 2: Convert to fraction form
    370,860.72/556,151.40 = 134,144.88/x
  3. Step 3: Cross multiply
    370,860.72x = 556,151.40 × 134,144.88
  4. Step 4: Simplify right side
    370,860.72x = 74,604,862,814.83
  5. Step 5: Solve for x
    x = 74,604,862,814.83/370,860.72
  6. Step 6: Final answer
    x = 201,166.80

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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.