Home / 310,516.20-465,774.30-292,145.40

Finding the Fourth Proportional to 310,516.20, 465,774.30 and 292,145.40

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Solution

The fourth proportional to 310,516.20, 465,774.30 and 292,145.40 is: 438,218.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,516.20 : 465,774.30 = 292,145.40 : x
  2. Step 2: Convert to fraction form
    310,516.20/465,774.30 = 292,145.40/x
  3. Step 3: Cross multiply
    310,516.20x = 465,774.30 × 292,145.40
  4. Step 4: Simplify right side
    310,516.20x = 136,073,819,183.22
  5. Step 5: Solve for x
    x = 136,073,819,183.22/310,516.20
  6. Step 6: Final answer
    x = 438,218.10

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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.