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Finding the Fourth Proportional to 533,540.81, 736,309.91 and 307,259.21

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Solution

The fourth proportional to 533,540.81, 736,309.91 and 307,259.21 is: 424,031.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    533,540.81 : 736,309.91 = 307,259.21 : x
  2. Step 2: Convert to fraction form
    533,540.81/736,309.91 = 307,259.21/x
  3. Step 3: Cross multiply
    533,540.81x = 736,309.91 × 307,259.21
  4. Step 4: Simplify right side
    533,540.81x = 226,238,001,261.77
  5. Step 5: Solve for x
    x = 226,238,001,261.77/533,540.81
  6. Step 6: Final answer
    x = 424,031.30

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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.