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Finding the Fourth Proportional to 260,101.90, 390,152.84 and 73,113.40

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Solution

The fourth proportional to 260,101.90, 390,152.84 and 73,113.40 is: 109,670.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,101.90 : 390,152.84 = 73,113.40 : x
  2. Step 2: Convert to fraction form
    260,101.90/390,152.84 = 73,113.40/x
  3. Step 3: Cross multiply
    260,101.90x = 390,152.84 × 73,113.40
  4. Step 4: Simplify right side
    260,101.90x = 28,525,398,335.72
  5. Step 5: Solve for x
    x = 28,525,398,335.72/260,101.90
  6. Step 6: Final answer
    x = 109,670.09

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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.