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Finding the Fourth Proportional to 248,915.80, 373,373.70 and 154,221.40

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Solution

The fourth proportional to 248,915.80, 373,373.70 and 154,221.40 is: 231,332.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,915.80 : 373,373.70 = 154,221.40 : x
  2. Step 2: Convert to fraction form
    248,915.80/373,373.70 = 154,221.40/x
  3. Step 3: Cross multiply
    248,915.80x = 373,373.70 × 154,221.40
  4. Step 4: Simplify right side
    248,915.80x = 57,582,214,737.18
  5. Step 5: Solve for x
    x = 57,582,214,737.18/248,915.80
  6. Step 6: Final answer
    x = 231,332.10

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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.