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Finding the Fourth Proportional to 472,042.69, 651,418.91 and 257,182.70

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Solution

The fourth proportional to 472,042.69, 651,418.91 and 257,182.70 is: 354,912.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,042.69 : 651,418.91 = 257,182.70 : x
  2. Step 2: Convert to fraction form
    472,042.69/651,418.91 = 257,182.70/x
  3. Step 3: Cross multiply
    472,042.69x = 651,418.91 × 257,182.70
  4. Step 4: Simplify right side
    472,042.69x = 167,533,670,526.28
  5. Step 5: Solve for x
    x = 167,533,670,526.28/472,042.69
  6. Step 6: Final answer
    x = 354,912.12

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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.