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Finding the Fourth Proportional to 438,321.60, 604,881.60 and 247,334.40

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Solution

The fourth proportional to 438,321.60, 604,881.60 and 247,334.40 is: 341,320.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,321.60 : 604,881.60 = 247,334.40 : x
  2. Step 2: Convert to fraction form
    438,321.60/604,881.60 = 247,334.40/x
  3. Step 3: Cross multiply
    438,321.60x = 604,881.60 × 247,334.40
  4. Step 4: Simplify right side
    438,321.60x = 149,608,027,607.04
  5. Step 5: Solve for x
    x = 149,608,027,607.04/438,321.60
  6. Step 6: Final answer
    x = 341,320.23

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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.