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Finding the Fourth Proportional to 285,510.60, 393,994.10 and 164,656.92

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Solution

The fourth proportional to 285,510.60, 393,994.10 and 164,656.92 is: 227,220.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,510.60 : 393,994.10 = 164,656.92 : x
  2. Step 2: Convert to fraction form
    285,510.60/393,994.10 = 164,656.92/x
  3. Step 3: Cross multiply
    285,510.60x = 393,994.10 × 164,656.92
  4. Step 4: Simplify right side
    285,510.60x = 64,873,855,004.17
  5. Step 5: Solve for x
    x = 64,873,855,004.17/285,510.60
  6. Step 6: Final answer
    x = 227,220.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.