Home / 326,156.13-450,023.58-315,404.28

Finding the Fourth Proportional to 326,156.13, 450,023.58 and 315,404.28

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Solution

The fourth proportional to 326,156.13, 450,023.58 and 315,404.28 is: 435,188.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,156.13 : 450,023.58 = 315,404.28 : x
  2. Step 2: Convert to fraction form
    326,156.13/450,023.58 = 315,404.28/x
  3. Step 3: Cross multiply
    326,156.13x = 450,023.58 × 315,404.28
  4. Step 4: Simplify right side
    326,156.13x = 141,939,363,232.92
  5. Step 5: Solve for x
    x = 141,939,363,232.92/326,156.13
  6. Step 6: Final answer
    x = 435,188.40

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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.