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Finding the Fourth Proportional to 247,492.67, 370,903.05 and 105,159.47

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Solution

The fourth proportional to 247,492.67, 370,903.05 and 105,159.47 is: 157,596.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,492.67 : 370,903.05 = 105,159.47 : x
  2. Step 2: Convert to fraction form
    247,492.67/370,903.05 = 105,159.47/x
  3. Step 3: Cross multiply
    247,492.67x = 370,903.05 × 105,159.47
  4. Step 4: Simplify right side
    247,492.67x = 39,003,966,304.87
  5. Step 5: Solve for x
    x = 39,003,966,304.87/247,492.67
  6. Step 6: Final answer
    x = 157,596.45

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.