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Finding the Fourth Proportional to 242,459.70, 334,684.17 and 208,331.70

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Solution

The fourth proportional to 242,459.70, 334,684.17 and 208,331.70 is: 287,574.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,459.70 : 334,684.17 = 208,331.70 : x
  2. Step 2: Convert to fraction form
    242,459.70/334,684.17 = 208,331.70/x
  3. Step 3: Cross multiply
    242,459.70x = 334,684.17 × 208,331.70
  4. Step 4: Simplify right side
    242,459.70x = 69,725,322,099.19
  5. Step 5: Solve for x
    x = 69,725,322,099.19/242,459.70
  6. Step 6: Final answer
    x = 287,574.89

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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.