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Finding the Fourth Proportional to 346,079.20, 518,830.80 and 146,552.80

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Solution

The fourth proportional to 346,079.20, 518,830.80 and 146,552.80 is: 219,707.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,079.20 : 518,830.80 = 146,552.80 : x
  2. Step 2: Convert to fraction form
    346,079.20/518,830.80 = 146,552.80/x
  3. Step 3: Cross multiply
    346,079.20x = 518,830.80 × 146,552.80
  4. Step 4: Simplify right side
    346,079.20x = 76,036,106,466.24
  5. Step 5: Solve for x
    x = 76,036,106,466.24/346,079.20
  6. Step 6: Final answer
    x = 219,707.24

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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.