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Finding the Fourth Proportional to 305,854.30, 458,781.45 and 305,854.30

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Solution

The fourth proportional to 305,854.30, 458,781.45 and 305,854.30 is: 458,781.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,854.30 : 458,781.45 = 305,854.30 : x
  2. Step 2: Convert to fraction form
    305,854.30/458,781.45 = 305,854.30/x
  3. Step 3: Cross multiply
    305,854.30x = 458,781.45 × 305,854.30
  4. Step 4: Simplify right side
    305,854.30x = 140,320,279,242.74
  5. Step 5: Solve for x
    x = 140,320,279,242.74/305,854.30
  6. Step 6: Final answer
    x = 458,781.45

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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.