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Finding the Fourth Proportional to 281,199.96, 388,055.97 and 153,875.57

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Solution

The fourth proportional to 281,199.96, 388,055.97 and 153,875.57 is: 212,348.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,199.96 : 388,055.97 = 153,875.57 : x
  2. Step 2: Convert to fraction form
    281,199.96/388,055.97 = 153,875.57/x
  3. Step 3: Cross multiply
    281,199.96x = 388,055.97 × 153,875.57
  4. Step 4: Simplify right side
    281,199.96x = 59,712,331,635.37
  5. Step 5: Solve for x
    x = 59,712,331,635.37/281,199.96
  6. Step 6: Final answer
    x = 212,348.29

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1.5x scale

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.