Home / 281,400.47-421,947.60-101,461.40

Finding the Fourth Proportional to 281,400.47, 421,947.60 and 101,461.40

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Solution

The fourth proportional to 281,400.47, 421,947.60 and 101,461.40 is: 152,136.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,400.47 : 421,947.60 = 101,461.40 : x
  2. Step 2: Convert to fraction form
    281,400.47/421,947.60 = 101,461.40/x
  3. Step 3: Cross multiply
    281,400.47x = 421,947.60 × 101,461.40
  4. Step 4: Simplify right side
    281,400.47x = 42,811,392,112.90
  5. Step 5: Solve for x
    x = 42,811,392,112.90/281,400.47
  6. Step 6: Final answer
    x = 152,136.89

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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.