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Finding the Fourth Proportional to 154,809.80, 232,214.70 and 49,639.40

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Solution

The fourth proportional to 154,809.80, 232,214.70 and 49,639.40 is: 74,459.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,809.80 : 232,214.70 = 49,639.40 : x
  2. Step 2: Convert to fraction form
    154,809.80/232,214.70 = 49,639.40/x
  3. Step 3: Cross multiply
    154,809.80x = 232,214.70 × 49,639.40
  4. Step 4: Simplify right side
    154,809.80x = 11,526,998,379.18
  5. Step 5: Solve for x
    x = 11,526,998,379.18/154,809.80
  6. Step 6: Final answer
    x = 74,459.10

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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.