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Finding the Fourth Proportional to 252,104.92, 347,903.13 and 138,927.76

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Solution

The fourth proportional to 252,104.92, 347,903.13 and 138,927.76 is: 191,719.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,104.92 : 347,903.13 = 138,927.76 : x
  2. Step 2: Convert to fraction form
    252,104.92/347,903.13 = 138,927.76/x
  3. Step 3: Cross multiply
    252,104.92x = 347,903.13 × 138,927.76
  4. Step 4: Simplify right side
    252,104.92x = 48,333,402,547.89
  5. Step 5: Solve for x
    x = 48,333,402,547.89/252,104.92
  6. Step 6: Final answer
    x = 191,719.39

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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.