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Finding the Fourth Proportional to 140,430.30, 210,208.05 and 101,064.30

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Solution

The fourth proportional to 140,430.30, 210,208.05 and 101,064.30 is: 151,281.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,430.30 : 210,208.05 = 101,064.30 : x
  2. Step 2: Convert to fraction form
    140,430.30/210,208.05 = 101,064.30/x
  3. Step 3: Cross multiply
    140,430.30x = 210,208.05 × 101,064.30
  4. Step 4: Simplify right side
    140,430.30x = 21,244,529,427.62
  5. Step 5: Solve for x
    x = 21,244,529,427.62/140,430.30
  6. Step 6: Final answer
    x = 151,281.66

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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.