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Finding the Fourth Proportional to 539,256.64, 808,855.68 and 165,280.64

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Solution

The fourth proportional to 539,256.64, 808,855.68 and 165,280.64 is: 247,911.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,256.64 : 808,855.68 = 165,280.64 : x
  2. Step 2: Convert to fraction form
    539,256.64/808,855.68 = 165,280.64/x
  3. Step 3: Cross multiply
    539,256.64x = 808,855.68 × 165,280.64
  4. Step 4: Simplify right side
    539,256.64x = 133,688,184,458.04
  5. Step 5: Solve for x
    x = 133,688,184,458.04/539,256.64
  6. Step 6: Final answer
    x = 247,911.99

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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.