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Finding the Fourth Proportional to 146,802.40, 220,210.80 and 76,818.40

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Solution

The fourth proportional to 146,802.40, 220,210.80 and 76,818.40 is: 115,231.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,802.40 : 220,210.80 = 76,818.40 : x
  2. Step 2: Convert to fraction form
    146,802.40/220,210.80 = 76,818.40/x
  3. Step 3: Cross multiply
    146,802.40x = 220,210.80 × 76,818.40
  4. Step 4: Simplify right side
    146,802.40x = 16,916,241,318.72
  5. Step 5: Solve for x
    x = 16,916,241,318.72/146,802.40
  6. Step 6: Final answer
    x = 115,231.37

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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.