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Finding the Fourth Proportional to 357,011.52, 535,143.68 and 120,272.42

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Solution

The fourth proportional to 357,011.52, 535,143.68 and 120,272.42 is: 180,282.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,011.52 : 535,143.68 = 120,272.42 : x
  2. Step 2: Convert to fraction form
    357,011.52/535,143.68 = 120,272.42/x
  3. Step 3: Cross multiply
    357,011.52x = 535,143.68 × 120,272.42
  4. Step 4: Simplify right side
    357,011.52x = 64,363,025,441.31
  5. Step 5: Solve for x
    x = 64,363,025,441.31/357,011.52
  6. Step 6: Final answer
    x = 180,282.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.