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Finding the Fourth Proportional to 146,915.20, 220,603.20 and 100,374.40

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Solution

The fourth proportional to 146,915.20, 220,603.20 and 100,374.40 is: 150,719.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,915.20 : 220,603.20 = 100,374.40 : x
  2. Step 2: Convert to fraction form
    146,915.20/220,603.20 = 100,374.40/x
  3. Step 3: Cross multiply
    146,915.20x = 220,603.20 × 100,374.40
  4. Step 4: Simplify right side
    146,915.20x = 22,142,913,838.08
  5. Step 5: Solve for x
    x = 22,142,913,838.08/146,915.20
  6. Step 6: Final answer
    x = 150,719.01

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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.