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Finding the Fourth Proportional to 288,083.04, 432,280.08 and 140,339.04

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Solution

The fourth proportional to 288,083.04, 432,280.08 and 140,339.04 is: 210,584.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,083.04 : 432,280.08 = 140,339.04 : x
  2. Step 2: Convert to fraction form
    288,083.04/432,280.08 = 140,339.04/x
  3. Step 3: Cross multiply
    288,083.04x = 432,280.08 × 140,339.04
  4. Step 4: Simplify right side
    288,083.04x = 60,665,771,438.32
  5. Step 5: Solve for x
    x = 60,665,771,438.32/288,083.04
  6. Step 6: Final answer
    x = 210,584.32

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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.