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Finding the Fourth Proportional to 533,538.81, 736,307.15 and 307,257.21

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Solution

The fourth proportional to 533,538.81, 736,307.15 and 307,257.21 is: 424,028.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    533,538.81 : 736,307.15 = 307,257.21 : x
  2. Step 2: Convert to fraction form
    533,538.81/736,307.15 = 307,257.21/x
  3. Step 3: Cross multiply
    533,538.81x = 736,307.15 × 307,257.21
  4. Step 4: Simplify right side
    533,538.81x = 226,235,679,075.77
  5. Step 5: Solve for x
    x = 226,235,679,075.77/533,538.81
  6. Step 6: Final answer
    x = 424,028.53

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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.