Home / 345,438.48-518,176.26-108,799.68

Finding the Fourth Proportional to 345,438.48, 518,176.26 and 108,799.68

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Solution

The fourth proportional to 345,438.48, 518,176.26 and 108,799.68 is: 163,205.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,438.48 : 518,176.26 = 108,799.68 : x
  2. Step 2: Convert to fraction form
    345,438.48/518,176.26 = 108,799.68/x
  3. Step 3: Cross multiply
    345,438.48x = 518,176.26 × 108,799.68
  4. Step 4: Simplify right side
    345,438.48x = 56,377,411,271.60
  5. Step 5: Solve for x
    x = 56,377,411,271.60/345,438.48
  6. Step 6: Final answer
    x = 163,205.36

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1.5x scale

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.