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Finding the Fourth Proportional to 188,445.50, 282,797.85 and 77,637.50

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Solution

The fourth proportional to 188,445.50, 282,797.85 and 77,637.50 is: 116,509.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,445.50 : 282,797.85 = 77,637.50 : x
  2. Step 2: Convert to fraction form
    188,445.50/282,797.85 = 77,637.50/x
  3. Step 3: Cross multiply
    188,445.50x = 282,797.85 × 77,637.50
  4. Step 4: Simplify right side
    188,445.50x = 21,955,718,079.38
  5. Step 5: Solve for x
    x = 21,955,718,079.38/188,445.50
  6. Step 6: Final answer
    x = 116,509.64

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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.