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Finding the Fourth Proportional to 346,735.20, 520,102.80 and 307,336.80

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Solution

The fourth proportional to 346,735.20, 520,102.80 and 307,336.80 is: 461,005.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,735.20 : 520,102.80 = 307,336.80 : x
  2. Step 2: Convert to fraction form
    346,735.20/520,102.80 = 307,336.80/x
  3. Step 3: Cross multiply
    346,735.20x = 520,102.80 × 307,336.80
  4. Step 4: Simplify right side
    346,735.20x = 159,846,730,223.04
  5. Step 5: Solve for x
    x = 159,846,730,223.04/346,735.20
  6. Step 6: Final answer
    x = 461,005.20

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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.