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Finding the Fourth Proportional to 278,045.55, 417,068.33 and 165,852.45

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Solution

The fourth proportional to 278,045.55, 417,068.33 and 165,852.45 is: 248,778.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,045.55 : 417,068.33 = 165,852.45 : x
  2. Step 2: Convert to fraction form
    278,045.55/417,068.33 = 165,852.45/x
  3. Step 3: Cross multiply
    278,045.55x = 417,068.33 × 165,852.45
  4. Step 4: Simplify right side
    278,045.55x = 69,171,803,518.65
  5. Step 5: Solve for x
    x = 69,171,803,518.65/278,045.55
  6. Step 6: Final answer
    x = 248,778.68

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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.