Home / 346,670.20-520,005.30-307,271.80

Finding the Fourth Proportional to 346,670.20, 520,005.30 and 307,271.80

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Solution

The fourth proportional to 346,670.20, 520,005.30 and 307,271.80 is: 460,907.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,670.20 : 520,005.30 = 307,271.80 : x
  2. Step 2: Convert to fraction form
    346,670.20/520,005.30 = 307,271.80/x
  3. Step 3: Cross multiply
    346,670.20x = 520,005.30 × 307,271.80
  4. Step 4: Simplify right side
    346,670.20x = 159,782,964,540.54
  5. Step 5: Solve for x
    x = 159,782,964,540.54/346,670.20
  6. Step 6: Final answer
    x = 460,907.70

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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.