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Finding the Fourth Proportional to 254,841.48, 381,430.23 and 187,355.70

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Solution

The fourth proportional to 254,841.48, 381,430.23 and 187,355.70 is: 280,421.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,841.48 : 381,430.23 = 187,355.70 : x
  2. Step 2: Convert to fraction form
    254,841.48/381,430.23 = 187,355.70/x
  3. Step 3: Cross multiply
    254,841.48x = 381,430.23 × 187,355.70
  4. Step 4: Simplify right side
    254,841.48x = 71,463,127,742.81
  5. Step 5: Solve for x
    x = 71,463,127,742.81/254,841.48
  6. Step 6: Final answer
    x = 280,421.88

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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.