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Finding the Fourth Proportional to 472,073.52, 651,453.26 and 257,215.35

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Solution

The fourth proportional to 472,073.52, 651,453.26 and 257,215.35 is: 354,952.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,073.52 : 651,453.26 = 257,215.35 : x
  2. Step 2: Convert to fraction form
    472,073.52/651,453.26 = 257,215.35/x
  3. Step 3: Cross multiply
    472,073.52x = 651,453.26 × 257,215.35
  4. Step 4: Simplify right side
    472,073.52x = 167,563,776,993.46
  5. Step 5: Solve for x
    x = 167,563,776,993.46/472,073.52
  6. Step 6: Final answer
    x = 354,952.71

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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.