Home / 340,314.23-510,471.35-90,989.75

Finding the Fourth Proportional to 340,314.23, 510,471.35 and 90,989.75

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Solution

The fourth proportional to 340,314.23, 510,471.35 and 90,989.75 is: 136,484.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,314.23 : 510,471.35 = 90,989.75 : x
  2. Step 2: Convert to fraction form
    340,314.23/510,471.35 = 90,989.75/x
  3. Step 3: Cross multiply
    340,314.23x = 510,471.35 × 90,989.75
  4. Step 4: Simplify right side
    340,314.23x = 46,447,660,518.66
  5. Step 5: Solve for x
    x = 46,447,660,518.66/340,314.23
  6. Step 6: Final answer
    x = 136,484.63

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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.