Home / 282,851.21-390,333.40-155,526.50

Finding the Fourth Proportional to 282,851.21, 390,333.40 and 155,526.50

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Solution

The fourth proportional to 282,851.21, 390,333.40 and 155,526.50 is: 214,625.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,851.21 : 390,333.40 = 155,526.50 : x
  2. Step 2: Convert to fraction form
    282,851.21/390,333.40 = 155,526.50/x
  3. Step 3: Cross multiply
    282,851.21x = 390,333.40 × 155,526.50
  4. Step 4: Simplify right side
    282,851.21x = 60,707,188,122.12
  5. Step 5: Solve for x
    x = 60,707,188,122.12/282,851.21
  6. Step 6: Final answer
    x = 214,625.87

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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.