Home / 310,981.38-429,149.54-173,159.37

Finding the Fourth Proportional to 310,981.38, 429,149.54 and 173,159.37

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Solution

The fourth proportional to 310,981.38, 429,149.54 and 173,159.37 is: 238,957.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,981.38 : 429,149.54 = 173,159.37 : x
  2. Step 2: Convert to fraction form
    310,981.38/429,149.54 = 173,159.37/x
  3. Step 3: Cross multiply
    310,981.38x = 429,149.54 × 173,159.37
  4. Step 4: Simplify right side
    310,981.38x = 74,311,264,415.09
  5. Step 5: Solve for x
    x = 74,311,264,415.09/310,981.38
  6. Step 6: Final answer
    x = 238,957.28

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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.