Home / 306,020.52-422,312.71-168,212.21

Finding the Fourth Proportional to 306,020.52, 422,312.71 and 168,212.21

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Solution

The fourth proportional to 306,020.52, 422,312.71 and 168,212.21 is: 232,135.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,020.52 : 422,312.71 = 168,212.21 : x
  2. Step 2: Convert to fraction form
    306,020.52/422,312.71 = 168,212.21/x
  3. Step 3: Cross multiply
    306,020.52x = 422,312.71 × 168,212.21
  4. Step 4: Simplify right side
    306,020.52x = 71,038,154,260.19
  5. Step 5: Solve for x
    x = 71,038,154,260.19/306,020.52
  6. Step 6: Final answer
    x = 232,135.26

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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.