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Finding the Fourth Proportional to 537,373.80, 741,681.90 and 308,085.12

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Solution

The fourth proportional to 537,373.80, 741,681.90 and 308,085.12 is: 425,218.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    537,373.80 : 741,681.90 = 308,085.12 : x
  2. Step 2: Convert to fraction form
    537,373.80/741,681.90 = 308,085.12/x
  3. Step 3: Cross multiply
    537,373.80x = 741,681.90 × 308,085.12
  4. Step 4: Simplify right side
    537,373.80x = 228,501,157,163.33
  5. Step 5: Solve for x
    x = 228,501,157,163.33/537,373.80
  6. Step 6: Final answer
    x = 425,218.27

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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.