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Finding the Fourth Proportional to 247,116.60, 370,674.90 and 147,389.40

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Solution

The fourth proportional to 247,116.60, 370,674.90 and 147,389.40 is: 221,084.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,116.60 : 370,674.90 = 147,389.40 : x
  2. Step 2: Convert to fraction form
    247,116.60/370,674.90 = 147,389.40/x
  3. Step 3: Cross multiply
    247,116.60x = 370,674.90 × 147,389.40
  4. Step 4: Simplify right side
    247,116.60x = 54,633,551,106.06
  5. Step 5: Solve for x
    x = 54,633,551,106.06/247,116.60
  6. Step 6: Final answer
    x = 221,084.10

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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.