Home / 211,572.32-317,359.56-71,332.16

Finding the Fourth Proportional to 211,572.32, 317,359.56 and 71,332.16

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Solution

The fourth proportional to 211,572.32, 317,359.56 and 71,332.16 is: 106,998.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,572.32 : 317,359.56 = 71,332.16 : x
  2. Step 2: Convert to fraction form
    211,572.32/317,359.56 = 71,332.16/x
  3. Step 3: Cross multiply
    211,572.32x = 317,359.56 × 71,332.16
  4. Step 4: Simplify right side
    211,572.32x = 22,637,942,911.45
  5. Step 5: Solve for x
    x = 22,637,942,911.45/211,572.32
  6. Step 6: Final answer
    x = 106,998.60

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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.