Home / 355,515.10-533,272.65-261,036.70

Finding the Fourth Proportional to 355,515.10, 533,272.65 and 261,036.70

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Solution

The fourth proportional to 355,515.10, 533,272.65 and 261,036.70 is: 391,555.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,515.10 : 533,272.65 = 261,036.70 : x
  2. Step 2: Convert to fraction form
    355,515.10/533,272.65 = 261,036.70/x
  3. Step 3: Cross multiply
    355,515.10x = 533,272.65 × 261,036.70
  4. Step 4: Simplify right side
    355,515.10x = 139,203,732,756.26
  5. Step 5: Solve for x
    x = 139,203,732,756.26/355,515.10
  6. Step 6: Final answer
    x = 391,555.05

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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.