Home / 310,155.20-465,297.60-99,814.40

Finding the Fourth Proportional to 310,155.20, 465,297.60 and 99,814.40

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Solution

The fourth proportional to 310,155.20, 465,297.60 and 99,814.40 is: 149,742.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,155.20 : 465,297.60 = 99,814.40 : x
  2. Step 2: Convert to fraction form
    310,155.20/465,297.60 = 99,814.40/x
  3. Step 3: Cross multiply
    310,155.20x = 465,297.60 × 99,814.40
  4. Step 4: Simplify right side
    310,155.20x = 46,443,400,765.44
  5. Step 5: Solve for x
    x = 46,443,400,765.44/310,155.20
  6. Step 6: Final answer
    x = 149,742.45

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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.