Home / 445,423.51-667,994.60-145,835.23

Finding the Fourth Proportional to 445,423.51, 667,994.60 and 145,835.23

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Solution

The fourth proportional to 445,423.51, 667,994.60 and 145,835.23 is: 218,706.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,423.51 : 667,994.60 = 145,835.23 : x
  2. Step 2: Convert to fraction form
    445,423.51/667,994.60 = 145,835.23/x
  3. Step 3: Cross multiply
    445,423.51x = 667,994.60 × 145,835.23
  4. Step 4: Simplify right side
    445,423.51x = 97,417,142,060.61
  5. Step 5: Solve for x
    x = 97,417,142,060.61/445,423.51
  6. Step 6: Final answer
    x = 218,706.78

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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.