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Finding the Fourth Proportional to 242,616.70, 363,925.05 and 191,878.30

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Solution

The fourth proportional to 242,616.70, 363,925.05 and 191,878.30 is: 287,817.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,616.70 : 363,925.05 = 191,878.30 : x
  2. Step 2: Convert to fraction form
    242,616.70/363,925.05 = 191,878.30/x
  3. Step 3: Cross multiply
    242,616.70x = 363,925.05 × 191,878.30
  4. Step 4: Simplify right side
    242,616.70x = 69,829,319,921.42
  5. Step 5: Solve for x
    x = 69,829,319,921.42/242,616.70
  6. Step 6: Final answer
    x = 287,817.45

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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.