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Finding the Fourth Proportional to 272,290.70, 408,630.45 and 153,836.30

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Solution

The fourth proportional to 272,290.70, 408,630.45 and 153,836.30 is: 230,864.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,290.70 : 408,630.45 = 153,836.30 : x
  2. Step 2: Convert to fraction form
    272,290.70/408,630.45 = 153,836.30/x
  3. Step 3: Cross multiply
    272,290.70x = 408,630.45 × 153,836.30
  4. Step 4: Simplify right side
    272,290.70x = 62,862,196,495.34
  5. Step 5: Solve for x
    x = 62,862,196,495.34/272,290.70
  6. Step 6: Final answer
    x = 230,864.28

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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.