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Finding the Fourth Proportional to 461,315.07, 636,615.08 and 257,365.98

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Solution

The fourth proportional to 461,315.07, 636,615.08 and 257,365.98 is: 355,165.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    461,315.07 : 636,615.08 = 257,365.98 : x
  2. Step 2: Convert to fraction form
    461,315.07/636,615.08 = 257,365.98/x
  3. Step 3: Cross multiply
    461,315.07x = 636,615.08 × 257,365.98
  4. Step 4: Simplify right side
    461,315.07x = 163,843,063,625.27
  5. Step 5: Solve for x
    x = 163,843,063,625.27/461,315.07
  6. Step 6: Final answer
    x = 355,165.21

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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.