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Finding the Fourth Proportional to 280,149.63, 386,607.63 and 152,827.89

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Solution

The fourth proportional to 280,149.63, 386,607.63 and 152,827.89 is: 210,903.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,149.63 : 386,607.63 = 152,827.89 : x
  2. Step 2: Convert to fraction form
    280,149.63/386,607.63 = 152,827.89/x
  3. Step 3: Cross multiply
    280,149.63x = 386,607.63 × 152,827.89
  4. Step 4: Simplify right side
    280,149.63x = 59,084,428,350.80
  5. Step 5: Solve for x
    x = 59,084,428,350.80/280,149.63
  6. Step 6: Final answer
    x = 210,903.11

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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.