Home / 421,268.76-581,455.35-240,088.14

Finding the Fourth Proportional to 421,268.76, 581,455.35 and 240,088.14

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Solution

The fourth proportional to 421,268.76, 581,455.35 and 240,088.14 is: 331,381.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,268.76 : 581,455.35 = 240,088.14 : x
  2. Step 2: Convert to fraction form
    421,268.76/581,455.35 = 240,088.14/x
  3. Step 3: Cross multiply
    421,268.76x = 581,455.35 × 240,088.14
  4. Step 4: Simplify right side
    421,268.76x = 139,600,533,474.55
  5. Step 5: Solve for x
    x = 139,600,533,474.55/421,268.76
  6. Step 6: Final answer
    x = 331,381.17

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.