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Finding the Fourth Proportional to 247,085.60, 370,628.40 and 219,529.40

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Solution

The fourth proportional to 247,085.60, 370,628.40 and 219,529.40 is: 329,294.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,085.60 : 370,628.40 = 219,529.40 : x
  2. Step 2: Convert to fraction form
    247,085.60/370,628.40 = 219,529.40/x
  3. Step 3: Cross multiply
    247,085.60x = 370,628.40 × 219,529.40
  4. Step 4: Simplify right side
    247,085.60x = 81,363,830,274.96
  5. Step 5: Solve for x
    x = 81,363,830,274.96/247,085.60
  6. Step 6: Final answer
    x = 329,294.10

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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.