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Finding the Fourth Proportional to 310,122.51, 427,979.40 and 174,180.41

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Solution

The fourth proportional to 310,122.51, 427,979.40 and 174,180.41 is: 240,374.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,122.51 : 427,979.40 = 174,180.41 : x
  2. Step 2: Convert to fraction form
    310,122.51/427,979.40 = 174,180.41/x
  3. Step 3: Cross multiply
    310,122.51x = 427,979.40 × 174,180.41
  4. Step 4: Simplify right side
    310,122.51x = 74,545,626,175.40
  5. Step 5: Solve for x
    x = 74,545,626,175.40/310,122.51
  6. Step 6: Final answer
    x = 240,374.77

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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.