Home / 281,000.93-421,304.22-103,485.15

Finding the Fourth Proportional to 281,000.93, 421,304.22 and 103,485.15

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Solution

The fourth proportional to 281,000.93, 421,304.22 and 103,485.15 is: 155,155.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,000.93 : 421,304.22 = 103,485.15 : x
  2. Step 2: Convert to fraction form
    281,000.93/421,304.22 = 103,485.15/x
  3. Step 3: Cross multiply
    281,000.93x = 421,304.22 × 103,485.15
  4. Step 4: Simplify right side
    281,000.93x = 43,598,730,402.33
  5. Step 5: Solve for x
    x = 43,598,730,402.33/281,000.93
  6. Step 6: Final answer
    x = 155,155.11

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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.