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Finding the Fourth Proportional to 472,303.50, 651,759.75 and 257,438.94

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Solution

The fourth proportional to 472,303.50, 651,759.75 and 257,438.94 is: 355,255.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,303.50 : 651,759.75 = 257,438.94 : x
  2. Step 2: Convert to fraction form
    472,303.50/651,759.75 = 257,438.94/x
  3. Step 3: Cross multiply
    472,303.50x = 651,759.75 × 257,438.94
  4. Step 4: Simplify right side
    472,303.50x = 167,788,339,174.67
  5. Step 5: Solve for x
    x = 167,788,339,174.67/472,303.50
  6. Step 6: Final answer
    x = 355,255.34

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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.