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Finding the Fourth Proportional to 302,670.57, 414,660.57 and 291,320.04

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Solution

The fourth proportional to 302,670.57, 414,660.57 and 291,320.04 is: 399,110.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,670.57 : 414,660.57 = 291,320.04 : x
  2. Step 2: Convert to fraction form
    302,670.57/414,660.57 = 291,320.04/x
  3. Step 3: Cross multiply
    302,670.57x = 414,660.57 × 291,320.04
  4. Step 4: Simplify right side
    302,670.57x = 120,798,934,301.35
  5. Step 5: Solve for x
    x = 120,798,934,301.35/302,670.57
  6. Step 6: Final answer
    x = 399,110.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.