Home / 282,549.28-423,429.84-212,346.40

Finding the Fourth Proportional to 282,549.28, 423,429.84 and 212,346.40

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Solution

The fourth proportional to 282,549.28, 423,429.84 and 212,346.40 is: 318,223.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,549.28 : 423,429.84 = 212,346.40 : x
  2. Step 2: Convert to fraction form
    282,549.28/423,429.84 = 212,346.40/x
  3. Step 3: Cross multiply
    282,549.28x = 423,429.84 × 212,346.40
  4. Step 4: Simplify right side
    282,549.28x = 89,913,802,176.58
  5. Step 5: Solve for x
    x = 89,913,802,176.58/282,549.28
  6. Step 6: Final answer
    x = 318,223.43

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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.