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Finding the Fourth Proportional to 260,101.98, 390,152.97 and 73,113.48

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Solution

The fourth proportional to 260,101.98, 390,152.97 and 73,113.48 is: 109,670.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,101.98 : 390,152.97 = 73,113.48 : x
  2. Step 2: Convert to fraction form
    260,101.98/390,152.97 = 73,113.48/x
  3. Step 3: Cross multiply
    260,101.98x = 390,152.97 × 73,113.48
  4. Step 4: Simplify right side
    260,101.98x = 28,525,441,369.04
  5. Step 5: Solve for x
    x = 28,525,441,369.04/260,101.98
  6. Step 6: Final answer
    x = 109,670.22

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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.