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Finding the Fourth Proportional to 218,482.02, 301,510.89 and 122,992.20

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Solution

The fourth proportional to 218,482.02, 301,510.89 and 122,992.20 is: 169,732.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,482.02 : 301,510.89 = 122,992.20 : x
  2. Step 2: Convert to fraction form
    218,482.02/301,510.89 = 122,992.20/x
  3. Step 3: Cross multiply
    218,482.02x = 301,510.89 × 122,992.20
  4. Step 4: Simplify right side
    218,482.02x = 37,083,487,685.06
  5. Step 5: Solve for x
    x = 37,083,487,685.06/218,482.02
  6. Step 6: Final answer
    x = 169,732.45

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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.