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Finding the Fourth Proportional to 188,637.81, 282,912.84 and 55,482.45

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Solution

The fourth proportional to 188,637.81, 282,912.84 and 55,482.45 is: 83,210.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,637.81 : 282,912.84 = 55,482.45 : x
  2. Step 2: Convert to fraction form
    188,637.81/282,912.84 = 55,482.45/x
  3. Step 3: Cross multiply
    188,637.81x = 282,912.84 × 55,482.45
  4. Step 4: Simplify right side
    188,637.81x = 15,696,697,499.66
  5. Step 5: Solve for x
    x = 15,696,697,499.66/188,637.81
  6. Step 6: Final answer
    x = 83,210.77

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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.