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Finding the Fourth Proportional to 242,702.80, 364,054.20 and 217,333.60

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Solution

The fourth proportional to 242,702.80, 364,054.20 and 217,333.60 is: 326,000.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,702.80 : 364,054.20 = 217,333.60 : x
  2. Step 2: Convert to fraction form
    242,702.80/364,054.20 = 217,333.60/x
  3. Step 3: Cross multiply
    242,702.80x = 364,054.20 × 217,333.60
  4. Step 4: Simplify right side
    242,702.80x = 79,121,209,881.12
  5. Step 5: Solve for x
    x = 79,121,209,881.12/242,702.80
  6. Step 6: Final answer
    x = 326,000.40

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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.