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Finding the Fourth Proportional to 360,808.53, 497,586.81 and 309,805.26

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Solution

The fourth proportional to 360,808.53, 497,586.81 and 309,805.26 is: 427,248.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,808.53 : 497,586.81 = 309,805.26 : x
  2. Step 2: Convert to fraction form
    360,808.53/497,586.81 = 309,805.26/x
  3. Step 3: Cross multiply
    360,808.53x = 497,586.81 × 309,805.26
  4. Step 4: Simplify right side
    360,808.53x = 154,155,011,044.62
  5. Step 5: Solve for x
    x = 154,155,011,044.62/360,808.53
  6. Step 6: Final answer
    x = 427,248.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.