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Finding the Fourth Proportional to 472,076.52, 651,457.38 and 257,218.35

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Solution

The fourth proportional to 472,076.52, 651,457.38 and 257,218.35 is: 354,956.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,076.52 : 651,457.38 = 257,218.35 : x
  2. Step 2: Convert to fraction form
    472,076.52/651,457.38 = 257,218.35/x
  3. Step 3: Cross multiply
    472,076.52x = 651,457.38 × 257,218.35
  4. Step 4: Simplify right side
    472,076.52x = 167,566,792,378.92
  5. Step 5: Solve for x
    x = 167,566,792,378.92/472,076.52
  6. Step 6: Final answer
    x = 354,956.85

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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.