Home / 282,783.98-390,232.02-155,458.67

Finding the Fourth Proportional to 282,783.98, 390,232.02 and 155,458.67

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Solution

The fourth proportional to 282,783.98, 390,232.02 and 155,458.67 is: 214,527.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,783.98 : 390,232.02 = 155,458.67 : x
  2. Step 2: Convert to fraction form
    282,783.98/390,232.02 = 155,458.67/x
  3. Step 3: Cross multiply
    282,783.98x = 390,232.02 × 155,458.67
  4. Step 4: Simplify right side
    282,783.98x = 60,664,948,869.45
  5. Step 5: Solve for x
    x = 60,664,948,869.45/282,783.98
  6. Step 6: Final answer
    x = 214,527.53

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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.