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Finding the Fourth Proportional to 240,800.76, 332,307.54 and 145,289

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Solution

The fourth proportional to 240,800.76, 332,307.54 and 145,289 is: 200,500.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,800.76 : 332,307.54 = 145,289 : x
  2. Step 2: Convert to fraction form
    240,800.76/332,307.54 = 145,289/x
  3. Step 3: Cross multiply
    240,800.76x = 332,307.54 × 145,289
  4. Step 4: Simplify right side
    240,800.76x = 48,280,630,179.06
  5. Step 5: Solve for x
    x = 48,280,630,179.06/240,800.76
  6. Step 6: Final answer
    x = 200,500.32

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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.