Home / 345,771.84-518,298.12-145,925.40

Finding the Fourth Proportional to 345,771.84, 518,298.12 and 145,925.40

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Solution

The fourth proportional to 345,771.84, 518,298.12 and 145,925.40 is: 218,736.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,771.84 : 518,298.12 = 145,925.40 : x
  2. Step 2: Convert to fraction form
    345,771.84/518,298.12 = 145,925.40/x
  3. Step 3: Cross multiply
    345,771.84x = 518,298.12 × 145,925.40
  4. Step 4: Simplify right side
    345,771.84x = 75,632,860,480.25
  5. Step 5: Solve for x
    x = 75,632,860,480.25/345,771.84
  6. Step 6: Final answer
    x = 218,736.32

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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.