Home / 212,534.40-318,875.42-94,288.78

Finding the Fourth Proportional to 212,534.40, 318,875.42 and 94,288.78

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Solution

The fourth proportional to 212,534.40, 318,875.42 and 94,288.78 is: 141,465.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,534.40 : 318,875.42 = 94,288.78 : x
  2. Step 2: Convert to fraction form
    212,534.40/318,875.42 = 94,288.78/x
  3. Step 3: Cross multiply
    212,534.40x = 318,875.42 × 94,288.78
  4. Step 4: Simplify right side
    212,534.40x = 30,066,374,323.79
  5. Step 5: Solve for x
    x = 30,066,374,323.79/212,534.40
  6. Step 6: Final answer
    x = 141,465.92

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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.