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Finding the Fourth Proportional to 281,512.77, 388,487.81 and 152,452.25

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Solution

The fourth proportional to 281,512.77, 388,487.81 and 152,452.25 is: 210,384.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,512.77 : 388,487.81 = 152,452.25 : x
  2. Step 2: Convert to fraction form
    281,512.77/388,487.81 = 152,452.25/x
  3. Step 3: Cross multiply
    281,512.77x = 388,487.81 × 152,452.25
  4. Step 4: Simplify right side
    281,512.77x = 59,225,838,027.37
  5. Step 5: Solve for x
    x = 59,225,838,027.37/281,512.77
  6. Step 6: Final answer
    x = 210,384.20

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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.