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Finding the Fourth Proportional to 472,230.91, 651,659.67 and 257,366.38

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Solution

The fourth proportional to 472,230.91, 651,659.67 and 257,366.38 is: 355,155.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,230.91 : 651,659.67 = 257,366.38 : x
  2. Step 2: Convert to fraction form
    472,230.91/651,659.67 = 257,366.38/x
  3. Step 3: Cross multiply
    472,230.91x = 651,659.67 × 257,366.38
  4. Step 4: Simplify right side
    472,230.91x = 167,715,290,259.90
  5. Step 5: Solve for x
    x = 167,715,290,259.90/472,230.91
  6. Step 6: Final answer
    x = 355,155.26

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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.