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Finding the Fourth Proportional to 164,891.70, 247,337.55 and 145,864.80

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Solution

The fourth proportional to 164,891.70, 247,337.55 and 145,864.80 is: 218,797.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    164,891.70 : 247,337.55 = 145,864.80 : x
  2. Step 2: Convert to fraction form
    164,891.70/247,337.55 = 145,864.80/x
  3. Step 3: Cross multiply
    164,891.70x = 247,337.55 × 145,864.80
  4. Step 4: Simplify right side
    164,891.70x = 36,077,842,263.24
  5. Step 5: Solve for x
    x = 36,077,842,263.24/164,891.70
  6. Step 6: Final answer
    x = 218,797.20

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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.