Home / 211,546.10-317,319.15-127,565.30

Finding the Fourth Proportional to 211,546.10, 317,319.15 and 127,565.30

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Solution

The fourth proportional to 211,546.10, 317,319.15 and 127,565.30 is: 191,347.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,546.10 : 317,319.15 = 127,565.30 : x
  2. Step 2: Convert to fraction form
    211,546.10/317,319.15 = 127,565.30/x
  3. Step 3: Cross multiply
    211,546.10x = 317,319.15 × 127,565.30
  4. Step 4: Simplify right side
    211,546.10x = 40,478,912,565.50
  5. Step 5: Solve for x
    x = 40,478,912,565.50/211,546.10
  6. Step 6: Final answer
    x = 191,347.95

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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.