Home / 402,239.72-602,815.26-152,785.64

Finding the Fourth Proportional to 402,239.72, 602,815.26 and 152,785.64

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Solution

The fourth proportional to 402,239.72, 602,815.26 and 152,785.64 is: 228,971.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,239.72 : 602,815.26 = 152,785.64 : x
  2. Step 2: Convert to fraction form
    402,239.72/602,815.26 = 152,785.64/x
  3. Step 3: Cross multiply
    402,239.72x = 602,815.26 × 152,785.64
  4. Step 4: Simplify right side
    402,239.72x = 92,101,515,300.87
  5. Step 5: Solve for x
    x = 92,101,515,300.87/402,239.72
  6. Step 6: Final answer
    x = 228,971.71

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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.