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Finding the Fourth Proportional to 281,718.68, 388,773.25 and 152,657.20

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Solution

The fourth proportional to 281,718.68, 388,773.25 and 152,657.20 is: 210,667.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,718.68 : 388,773.25 = 152,657.20 : x
  2. Step 2: Convert to fraction form
    281,718.68/388,773.25 = 152,657.20/x
  3. Step 3: Cross multiply
    281,718.68x = 388,773.25 × 152,657.20
  4. Step 4: Simplify right side
    281,718.68x = 59,349,035,155.27
  5. Step 5: Solve for x
    x = 59,349,035,155.27/281,718.68
  6. Step 6: Final answer
    x = 210,667.73

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.