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Finding the Fourth Proportional to 228,522.32, 342,573.53 and 78,726.99

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Solution

The fourth proportional to 228,522.32, 342,573.53 and 78,726.99 is: 118,018.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,522.32 : 342,573.53 = 78,726.99 : x
  2. Step 2: Convert to fraction form
    228,522.32/342,573.53 = 78,726.99/x
  3. Step 3: Cross multiply
    228,522.32x = 342,573.53 × 78,726.99
  4. Step 4: Simplify right side
    228,522.32x = 26,969,784,352.04
  5. Step 5: Solve for x
    x = 26,969,784,352.04/228,522.32
  6. Step 6: Final answer
    x = 118,018.16

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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.