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Finding the Fourth Proportional to 638,492.81, 957,711.53 and 158,710.46

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Solution

The fourth proportional to 638,492.81, 957,711.53 and 158,710.46 is: 238,058.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,492.81 : 957,711.53 = 158,710.46 : x
  2. Step 2: Convert to fraction form
    638,492.81/957,711.53 = 158,710.46/x
  3. Step 3: Cross multiply
    638,492.81x = 957,711.53 × 158,710.46
  4. Step 4: Simplify right side
    638,492.81x = 151,998,831,891.49
  5. Step 5: Solve for x
    x = 151,998,831,891.49/638,492.81
  6. Step 6: Final answer
    x = 238,058.80

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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.