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Finding the Fourth Proportional to 279,325.76, 385,477.58 and 152,009.42

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Solution

The fourth proportional to 279,325.76, 385,477.58 and 152,009.42 is: 209,777.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,325.76 : 385,477.58 = 152,009.42 : x
  2. Step 2: Convert to fraction form
    279,325.76/385,477.58 = 152,009.42/x
  3. Step 3: Cross multiply
    279,325.76x = 385,477.58 × 152,009.42
  4. Step 4: Simplify right side
    279,325.76x = 58,596,221,811.44
  5. Step 5: Solve for x
    x = 58,596,221,811.44/279,325.76
  6. Step 6: Final answer
    x = 209,777.37

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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.