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Finding the Fourth Proportional to 255,967.68, 353,234.88 and 142,783.68

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Solution

The fourth proportional to 255,967.68, 353,234.88 and 142,783.68 is: 197,041.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,967.68 : 353,234.88 = 142,783.68 : x
  2. Step 2: Convert to fraction form
    255,967.68/353,234.88 = 142,783.68/x
  3. Step 3: Cross multiply
    255,967.68x = 353,234.88 × 142,783.68
  4. Step 4: Simplify right side
    255,967.68x = 50,436,176,070.76
  5. Step 5: Solve for x
    x = 50,436,176,070.76/255,967.68
  6. Step 6: Final answer
    x = 197,041.19

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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.