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Finding the Fourth Proportional to 170,079.20, 255,118.80 and 146,459.60

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Solution

The fourth proportional to 170,079.20, 255,118.80 and 146,459.60 is: 219,689.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,079.20 : 255,118.80 = 146,459.60 : x
  2. Step 2: Convert to fraction form
    170,079.20/255,118.80 = 146,459.60/x
  3. Step 3: Cross multiply
    170,079.20x = 255,118.80 × 146,459.60
  4. Step 4: Simplify right side
    170,079.20x = 37,364,597,400.48
  5. Step 5: Solve for x
    x = 37,364,597,400.48/170,079.20
  6. Step 6: Final answer
    x = 219,689.40

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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.