Home / 195,430.20-293,145.30-145,663.80

Finding the Fourth Proportional to 195,430.20, 293,145.30 and 145,663.80

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Solution

The fourth proportional to 195,430.20, 293,145.30 and 145,663.80 is: 218,495.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    195,430.20 : 293,145.30 = 145,663.80 : x
  2. Step 2: Convert to fraction form
    195,430.20/293,145.30 = 145,663.80/x
  3. Step 3: Cross multiply
    195,430.20x = 293,145.30 × 145,663.80
  4. Step 4: Simplify right side
    195,430.20x = 42,700,658,350.14
  5. Step 5: Solve for x
    x = 42,700,658,350.14/195,430.20
  6. Step 6: Final answer
    x = 218,495.70

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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.