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Finding the Fourth Proportional to 346,693.20, 520,039.80 and 307,294.80

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Solution

The fourth proportional to 346,693.20, 520,039.80 and 307,294.80 is: 460,942.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,693.20 : 520,039.80 = 307,294.80 : x
  2. Step 2: Convert to fraction form
    346,693.20/520,039.80 = 307,294.80/x
  3. Step 3: Cross multiply
    346,693.20x = 520,039.80 × 307,294.80
  4. Step 4: Simplify right side
    346,693.20x = 159,805,526,333.04
  5. Step 5: Solve for x
    x = 159,805,526,333.04/346,693.20
  6. Step 6: Final answer
    x = 460,942.20

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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.