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Finding the Fourth Proportional to 472,108.86, 651,501.81 and 257,250.78

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Solution

The fourth proportional to 472,108.86, 651,501.81 and 257,250.78 is: 355,001.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,108.86 : 651,501.81 = 257,250.78 : x
  2. Step 2: Convert to fraction form
    472,108.86/651,501.81 = 257,250.78/x
  3. Step 3: Cross multiply
    472,108.86x = 651,501.81 × 257,250.78
  4. Step 4: Simplify right side
    472,108.86x = 167,599,348,793.91
  5. Step 5: Solve for x
    x = 167,599,348,793.91/472,108.86
  6. Step 6: Final answer
    x = 355,001.49

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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.