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Finding the Fourth Proportional to 145,598.20, 217,878.90 and 101,015.80

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Solution

The fourth proportional to 145,598.20, 217,878.90 and 101,015.80 is: 151,164.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,598.20 : 217,878.90 = 101,015.80 : x
  2. Step 2: Convert to fraction form
    145,598.20/217,878.90 = 101,015.80/x
  3. Step 3: Cross multiply
    145,598.20x = 217,878.90 × 101,015.80
  4. Step 4: Simplify right side
    145,598.20x = 22,009,211,386.62
  5. Step 5: Solve for x
    x = 22,009,211,386.62/145,598.20
  6. Step 6: Final answer
    x = 151,164.03

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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.