Home / 389,320.10-583,980.15-231,856.10

Finding the Fourth Proportional to 389,320.10, 583,980.15 and 231,856.10

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Solution

The fourth proportional to 389,320.10, 583,980.15 and 231,856.10 is: 347,784.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,320.10 : 583,980.15 = 231,856.10 : x
  2. Step 2: Convert to fraction form
    389,320.10/583,980.15 = 231,856.10/x
  3. Step 3: Cross multiply
    389,320.10x = 583,980.15 × 231,856.10
  4. Step 4: Simplify right side
    389,320.10x = 135,399,360,056.42
  5. Step 5: Solve for x
    x = 135,399,360,056.42/389,320.10
  6. Step 6: Final answer
    x = 347,784.15

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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.