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Finding the Fourth Proportional to 191,718.30, 287,577.45 and 191,718.30

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Solution

The fourth proportional to 191,718.30, 287,577.45 and 191,718.30 is: 287,577.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,718.30 : 287,577.45 = 191,718.30 : x
  2. Step 2: Convert to fraction form
    191,718.30/287,577.45 = 191,718.30/x
  3. Step 3: Cross multiply
    191,718.30x = 287,577.45 × 191,718.30
  4. Step 4: Simplify right side
    191,718.30x = 55,133,859,832.34
  5. Step 5: Solve for x
    x = 55,133,859,832.34/191,718.30
  6. Step 6: Final answer
    x = 287,577.45

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.