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Finding the Fourth Proportional to 218,508.36, 301,547.17 and 123,018.47

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Solution

The fourth proportional to 218,508.36, 301,547.17 and 123,018.47 is: 169,768.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,508.36 : 301,547.17 = 123,018.47 : x
  2. Step 2: Convert to fraction form
    218,508.36/301,547.17 = 123,018.47/x
  3. Step 3: Cross multiply
    218,508.36x = 301,547.17 × 123,018.47
  4. Step 4: Simplify right side
    218,508.36x = 37,095,871,486.23
  5. Step 5: Solve for x
    x = 37,095,871,486.23/218,508.36
  6. Step 6: Final answer
    x = 169,768.66

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