Home / 211,547.70-317,321.55-127,566.90

Finding the Fourth Proportional to 211,547.70, 317,321.55 and 127,566.90

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Solution

The fourth proportional to 211,547.70, 317,321.55 and 127,566.90 is: 191,350.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,547.70 : 317,321.55 = 127,566.90 : x
  2. Step 2: Convert to fraction form
    211,547.70/317,321.55 = 127,566.90/x
  3. Step 3: Cross multiply
    211,547.70x = 317,321.55 × 127,566.90
  4. Step 4: Simplify right side
    211,547.70x = 40,479,726,436.70
  5. Step 5: Solve for x
    x = 40,479,726,436.70/211,547.70
  6. Step 6: Final answer
    x = 191,350.35

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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.