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Finding the Fourth Proportional to 248,547.71, 342,999.83 and 135,370.46

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Solution

The fourth proportional to 248,547.71, 342,999.83 and 135,370.46 is: 186,813.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,547.71 : 342,999.83 = 135,370.46 : x
  2. Step 2: Convert to fraction form
    248,547.71/342,999.83 = 135,370.46/x
  3. Step 3: Cross multiply
    248,547.71x = 342,999.83 × 135,370.46
  4. Step 4: Simplify right side
    248,547.71x = 46,432,044,090.17
  5. Step 5: Solve for x
    x = 46,432,044,090.17/248,547.71
  6. Step 6: Final answer
    x = 186,813.41

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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.