Home / 211,606.28-317,457.87-91,683.18

Finding the Fourth Proportional to 211,606.28, 317,457.87 and 91,683.18

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Solution

The fourth proportional to 211,606.28, 317,457.87 and 91,683.18 is: 137,545.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,606.28 : 317,457.87 = 91,683.18 : x
  2. Step 2: Convert to fraction form
    211,606.28/317,457.87 = 91,683.18/x
  3. Step 3: Cross multiply
    211,606.28x = 317,457.87 × 91,683.18
  4. Step 4: Simplify right side
    211,606.28x = 29,105,547,372.86
  5. Step 5: Solve for x
    x = 29,105,547,372.86/211,606.28
  6. Step 6: Final answer
    x = 137,545.77

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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.