Home / 313,153.20-469,875.60-163,562.40

Finding the Fourth Proportional to 313,153.20, 469,875.60 and 163,562.40

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Solution

The fourth proportional to 313,153.20, 469,875.60 and 163,562.40 is: 245,419.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,153.20 : 469,875.60 = 163,562.40 : x
  2. Step 2: Convert to fraction form
    313,153.20/469,875.60 = 163,562.40/x
  3. Step 3: Cross multiply
    313,153.20x = 469,875.60 × 163,562.40
  4. Step 4: Simplify right side
    313,153.20x = 76,853,980,837.44
  5. Step 5: Solve for x
    x = 76,853,980,837.44/313,153.20
  6. Step 6: Final answer
    x = 245,419.75

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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.