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Finding the Fourth Proportional to 272,368.37, 408,808.53 and 142,630.30

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Solution

The fourth proportional to 272,368.37, 408,808.53 and 142,630.30 is: 214,079.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,368.37 : 408,808.53 = 142,630.30 : x
  2. Step 2: Convert to fraction form
    272,368.37/408,808.53 = 142,630.30/x
  3. Step 3: Cross multiply
    272,368.37x = 408,808.53 × 142,630.30
  4. Step 4: Simplify right side
    272,368.37x = 58,308,483,276.46
  5. Step 5: Solve for x
    x = 58,308,483,276.46/272,368.37
  6. Step 6: Final answer
    x = 214,079.50

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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.