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Finding the Fourth Proportional to 638,908.84, 958,250.86 and 234,017.40

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Solution

The fourth proportional to 638,908.84, 958,250.86 and 234,017.40 is: 350,984.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,908.84 : 958,250.86 = 234,017.40 : x
  2. Step 2: Convert to fraction form
    638,908.84/958,250.86 = 234,017.40/x
  3. Step 3: Cross multiply
    638,908.84x = 958,250.86 × 234,017.40
  4. Step 4: Simplify right side
    638,908.84x = 224,247,374,804.96
  5. Step 5: Solve for x
    x = 224,247,374,804.96/638,908.84
  6. Step 6: Final answer
    x = 350,984.93

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1.5x scale

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.