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Finding the Fourth Proportional to 278,667.59, 417,999.16 and 165,599.01

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Solution

The fourth proportional to 278,667.59, 417,999.16 and 165,599.01 is: 248,397.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,667.59 : 417,999.16 = 165,599.01 : x
  2. Step 2: Convert to fraction form
    278,667.59/417,999.16 = 165,599.01/x
  3. Step 3: Cross multiply
    278,667.59x = 417,999.16 × 165,599.01
  4. Step 4: Simplify right side
    278,667.59x = 69,220,247,405.89
  5. Step 5: Solve for x
    x = 69,220,247,405.89/278,667.59
  6. Step 6: Final answer
    x = 248,397.19

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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.