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Finding the Fourth Proportional to 191,535, 287,302.50 and 60,207

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Solution

The fourth proportional to 191,535, 287,302.50 and 60,207 is: 90,310.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,535 : 287,302.50 = 60,207 : x
  2. Step 2: Convert to fraction form
    191,535/287,302.50 = 60,207/x
  3. Step 3: Cross multiply
    191,535x = 287,302.50 × 60,207
  4. Step 4: Simplify right side
    191,535x = 17,297,621,617.50
  5. Step 5: Solve for x
    x = 17,297,621,617.50/191,535
  6. Step 6: Final answer
    x = 90,310.50

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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.