Home / 448,097.86-618,389.05-257,146.18

Finding the Fourth Proportional to 448,097.86, 618,389.05 and 257,146.18

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Solution

The fourth proportional to 448,097.86, 618,389.05 and 257,146.18 is: 354,869.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,097.86 : 618,389.05 = 257,146.18 : x
  2. Step 2: Convert to fraction form
    448,097.86/618,389.05 = 257,146.18/x
  3. Step 3: Cross multiply
    448,097.86x = 618,389.05 × 257,146.18
  4. Step 4: Simplify right side
    448,097.86x = 159,016,381,961.33
  5. Step 5: Solve for x
    x = 159,016,381,961.33/448,097.86
  6. Step 6: Final answer
    x = 354,869.76

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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.