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Finding the Fourth Proportional to 354,066.87, 488,812.53 and 245,329.23

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Solution

The fourth proportional to 354,066.87, 488,812.53 and 245,329.23 is: 338,693.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,066.87 : 488,812.53 = 245,329.23 : x
  2. Step 2: Convert to fraction form
    354,066.87/488,812.53 = 245,329.23/x
  3. Step 3: Cross multiply
    354,066.87x = 488,812.53 × 245,329.23
  4. Step 4: Simplify right side
    354,066.87x = 119,920,001,599.25
  5. Step 5: Solve for x
    x = 119,920,001,599.25/354,066.87
  6. Step 6: Final answer
    x = 338,693.09

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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.