Home / 236,934.72-355,542.08-87,280

Finding the Fourth Proportional to 236,934.72, 355,542.08 and 87,280

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Solution

The fourth proportional to 236,934.72, 355,542.08 and 87,280 is: 130,971.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,934.72 : 355,542.08 = 87,280 : x
  2. Step 2: Convert to fraction form
    236,934.72/355,542.08 = 87,280/x
  3. Step 3: Cross multiply
    236,934.72x = 355,542.08 × 87,280
  4. Step 4: Simplify right side
    236,934.72x = 31,031,712,742.40
  5. Step 5: Solve for x
    x = 31,031,712,742.40/236,934.72
  6. Step 6: Final answer
    x = 130,971.57

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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.