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Finding the Fourth Proportional to 262,430.80, 393,708.69 and 84,937.83

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Solution

The fourth proportional to 262,430.80, 393,708.69 and 84,937.83 is: 127,426.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,430.80 : 393,708.69 = 84,937.83 : x
  2. Step 2: Convert to fraction form
    262,430.80/393,708.69 = 84,937.83/x
  3. Step 3: Cross multiply
    262,430.80x = 393,708.69 × 84,937.83
  4. Step 4: Simplify right side
    262,430.80x = 33,440,761,780.74
  5. Step 5: Solve for x
    x = 33,440,761,780.74/262,430.80
  6. Step 6: Final answer
    x = 127,426.97

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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.