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Finding the Fourth Proportional to 262,019.70, 392,122.35 and 156,914.10

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Solution

The fourth proportional to 262,019.70, 392,122.35 and 156,914.10 is: 234,827.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,019.70 : 392,122.35 = 156,914.10 : x
  2. Step 2: Convert to fraction form
    262,019.70/392,122.35 = 156,914.10/x
  3. Step 3: Cross multiply
    262,019.70x = 392,122.35 × 156,914.10
  4. Step 4: Simplify right side
    262,019.70x = 61,529,525,640.14
  5. Step 5: Solve for x
    x = 61,529,525,640.14/262,019.70
  6. Step 6: Final answer
    x = 234,827.86

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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.