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Finding the Fourth Proportional to 356,298.30, 534,482.64 and 103,581.12

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Solution

The fourth proportional to 356,298.30, 534,482.64 and 103,581.12 is: 155,381.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,298.30 : 534,482.64 = 103,581.12 : x
  2. Step 2: Convert to fraction form
    356,298.30/534,482.64 = 103,581.12/x
  3. Step 3: Cross multiply
    356,298.30x = 534,482.64 × 103,581.12
  4. Step 4: Simplify right side
    356,298.30x = 55,362,310,471.76
  5. Step 5: Solve for x
    x = 55,362,310,471.76/356,298.30
  6. Step 6: Final answer
    x = 155,381.91

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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.