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Finding the Fourth Proportional to 255,501.54, 383,298.48 and 105,660.45

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Solution

The fourth proportional to 255,501.54, 383,298.48 and 105,660.45 is: 158,509.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,501.54 : 383,298.48 = 105,660.45 : x
  2. Step 2: Convert to fraction form
    255,501.54/383,298.48 = 105,660.45/x
  3. Step 3: Cross multiply
    255,501.54x = 383,298.48 × 105,660.45
  4. Step 4: Simplify right side
    255,501.54x = 40,499,489,881.12
  5. Step 5: Solve for x
    x = 40,499,489,881.12/255,501.54
  6. Step 6: Final answer
    x = 158,509.77

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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.