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Finding the Fourth Proportional to 237,071.64, 355,642.83 and 87,300.42

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Solution

The fourth proportional to 237,071.64, 355,642.83 and 87,300.42 is: 130,963.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    237,071.64 : 355,642.83 = 87,300.42 : x
  2. Step 2: Convert to fraction form
    237,071.64/355,642.83 = 87,300.42/x
  3. Step 3: Cross multiply
    237,071.64x = 355,642.83 × 87,300.42
  4. Step 4: Simplify right side
    237,071.64x = 31,047,768,428.99
  5. Step 5: Solve for x
    x = 31,047,768,428.99/237,071.64
  6. Step 6: Final answer
    x = 130,963.65

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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.