Home / 217,877.23-300,699.30-122,389.17

Finding the Fourth Proportional to 217,877.23, 300,699.30 and 122,389.17

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Solution

The fourth proportional to 217,877.23, 300,699.30 and 122,389.17 is: 168,913.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,877.23 : 300,699.30 = 122,389.17 : x
  2. Step 2: Convert to fraction form
    217,877.23/300,699.30 = 122,389.17/x
  3. Step 3: Cross multiply
    217,877.23x = 300,699.30 × 122,389.17
  4. Step 4: Simplify right side
    217,877.23x = 36,802,337,746.58
  5. Step 5: Solve for x
    x = 36,802,337,746.58/217,877.23
  6. Step 6: Final answer
    x = 168,913.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.