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Finding the Fourth Proportional to 255,953.60, 384,103.20 and 166,990.40

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Solution

The fourth proportional to 255,953.60, 384,103.20 and 166,990.40 is: 250,598.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,953.60 : 384,103.20 = 166,990.40 : x
  2. Step 2: Convert to fraction form
    255,953.60/384,103.20 = 166,990.40/x
  3. Step 3: Cross multiply
    255,953.60x = 384,103.20 × 166,990.40
  4. Step 4: Simplify right side
    255,953.60x = 64,141,547,009.28
  5. Step 5: Solve for x
    x = 64,141,547,009.28/255,953.60
  6. Step 6: Final answer
    x = 250,598.34

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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.