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Finding the Fourth Proportional to 316,247.54, 436,420.05 and 173,004.98

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Solution

The fourth proportional to 316,247.54, 436,420.05 and 173,004.98 is: 238,746.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,247.54 : 436,420.05 = 173,004.98 : x
  2. Step 2: Convert to fraction form
    316,247.54/436,420.05 = 173,004.98/x
  3. Step 3: Cross multiply
    316,247.54x = 436,420.05 × 173,004.98
  4. Step 4: Simplify right side
    316,247.54x = 75,502,842,021.85
  5. Step 5: Solve for x
    x = 75,502,842,021.85/316,247.54
  6. Step 6: Final answer
    x = 238,746.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.