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Finding the Fourth Proportional to 438,120.60, 604,624.80 and 247,133.94

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Solution

The fourth proportional to 438,120.60, 604,624.80 and 247,133.94 is: 341,055.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,120.60 : 604,624.80 = 247,133.94 : x
  2. Step 2: Convert to fraction form
    438,120.60/604,624.80 = 247,133.94/x
  3. Step 3: Cross multiply
    438,120.60x = 604,624.80 × 247,133.94
  4. Step 4: Simplify right side
    438,120.60x = 149,423,309,045.71
  5. Step 5: Solve for x
    x = 149,423,309,045.71/438,120.60
  6. Step 6: Final answer
    x = 341,055.20

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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.