Home / 318,318.60-439,132.40-190,772.76

Finding the Fourth Proportional to 318,318.60, 439,132.40 and 190,772.76

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Solution

The fourth proportional to 318,318.60, 439,132.40 and 190,772.76 is: 263,178.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,318.60 : 439,132.40 = 190,772.76 : x
  2. Step 2: Convert to fraction form
    318,318.60/439,132.40 = 190,772.76/x
  3. Step 3: Cross multiply
    318,318.60x = 439,132.40 × 190,772.76
  4. Step 4: Simplify right side
    318,318.60x = 83,774,499,953.42
  5. Step 5: Solve for x
    x = 83,774,499,953.42/318,318.60
  6. Step 6: Final answer
    x = 263,178.15

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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.