Home / 439,931.70-659,897.55-140,434.20

Finding the Fourth Proportional to 439,931.70, 659,897.55 and 140,434.20

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Solution

The fourth proportional to 439,931.70, 659,897.55 and 140,434.20 is: 210,651.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,931.70 : 659,897.55 = 140,434.20 : x
  2. Step 2: Convert to fraction form
    439,931.70/659,897.55 = 140,434.20/x
  3. Step 3: Cross multiply
    439,931.70x = 659,897.55 × 140,434.20
  4. Step 4: Simplify right side
    439,931.70x = 92,672,184,516.21
  5. Step 5: Solve for x
    x = 92,672,184,516.21/439,931.70
  6. Step 6: Final answer
    x = 210,651.30

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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.