Home / 261,346.07-391,674.64-103,488.41

Finding the Fourth Proportional to 261,346.07, 391,674.64 and 103,488.41

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Solution

The fourth proportional to 261,346.07, 391,674.64 and 103,488.41 is: 155,096.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,346.07 : 391,674.64 = 103,488.41 : x
  2. Step 2: Convert to fraction form
    261,346.07/391,674.64 = 103,488.41/x
  3. Step 3: Cross multiply
    261,346.07x = 391,674.64 × 103,488.41
  4. Step 4: Simplify right side
    261,346.07x = 40,533,785,730.92
  5. Step 5: Solve for x
    x = 40,533,785,730.92/261,346.07
  6. Step 6: Final answer
    x = 155,096.21

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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.