Home / 298,056.79-447,282.14-140,330.35

Finding the Fourth Proportional to 298,056.79, 447,282.14 and 140,330.35

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Solution

The fourth proportional to 298,056.79, 447,282.14 and 140,330.35 is: 210,588.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,056.79 : 447,282.14 = 140,330.35 : x
  2. Step 2: Convert to fraction form
    298,056.79/447,282.14 = 140,330.35/x
  3. Step 3: Cross multiply
    298,056.79x = 447,282.14 × 140,330.35
  4. Step 4: Simplify right side
    298,056.79x = 62,767,258,553.30
  5. Step 5: Solve for x
    x = 62,767,258,553.30/298,056.79
  6. Step 6: Final answer
    x = 210,588.25

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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.