Home / 345,838.60-518,855.10-168,351.40

Finding the Fourth Proportional to 345,838.60, 518,855.10 and 168,351.40

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Solution

The fourth proportional to 345,838.60, 518,855.10 and 168,351.40 is: 252,574.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,838.60 : 518,855.10 = 168,351.40 : x
  2. Step 2: Convert to fraction form
    345,838.60/518,855.10 = 168,351.40/x
  3. Step 3: Cross multiply
    345,838.60x = 518,855.10 × 168,351.40
  4. Step 4: Simplify right side
    345,838.60x = 87,349,982,482.14
  5. Step 5: Solve for x
    x = 87,349,982,482.14/345,838.60
  6. Step 6: Final answer
    x = 252,574.42

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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.