Home / 282,742.95-390,123.36-168,059.71

Finding the Fourth Proportional to 282,742.95, 390,123.36 and 168,059.71

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Solution

The fourth proportional to 282,742.95, 390,123.36 and 168,059.71 is: 231,885.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,742.95 : 390,123.36 = 168,059.71 : x
  2. Step 2: Convert to fraction form
    282,742.95/390,123.36 = 168,059.71/x
  3. Step 3: Cross multiply
    282,742.95x = 390,123.36 × 168,059.71
  4. Step 4: Simplify right side
    282,742.95x = 65,564,019,706.15
  5. Step 5: Solve for x
    x = 65,564,019,706.15/282,742.95
  6. Step 6: Final answer
    x = 231,885.60

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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.