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Finding the Fourth Proportional to 151,379.40, 227,069.10 and 128,051.40

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Solution

The fourth proportional to 151,379.40, 227,069.10 and 128,051.40 is: 192,077.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,379.40 : 227,069.10 = 128,051.40 : x
  2. Step 2: Convert to fraction form
    151,379.40/227,069.10 = 128,051.40/x
  3. Step 3: Cross multiply
    151,379.40x = 227,069.10 × 128,051.40
  4. Step 4: Simplify right side
    151,379.40x = 29,076,516,151.74
  5. Step 5: Solve for x
    x = 29,076,516,151.74/151,379.40
  6. Step 6: Final answer
    x = 192,077.10

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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.