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Finding the Fourth Proportional to 535,133.88, 738,424.62 and 308,854.20

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Solution

The fourth proportional to 535,133.88, 738,424.62 and 308,854.20 is: 426,184.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    535,133.88 : 738,424.62 = 308,854.20 : x
  2. Step 2: Convert to fraction form
    535,133.88/738,424.62 = 308,854.20/x
  3. Step 3: Cross multiply
    535,133.88x = 738,424.62 × 308,854.20
  4. Step 4: Simplify right side
    535,133.88x = 228,065,545,270.40
  5. Step 5: Solve for x
    x = 228,065,545,270.40/535,133.88
  6. Step 6: Final answer
    x = 426,184.09

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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.