Home / 282,914.57-390,424.87-153,855.81

Finding the Fourth Proportional to 282,914.57, 390,424.87 and 153,855.81

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Solution

The fourth proportional to 282,914.57, 390,424.87 and 153,855.81 is: 212,322.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,914.57 : 390,424.87 = 153,855.81 : x
  2. Step 2: Convert to fraction form
    282,914.57/390,424.87 = 153,855.81/x
  3. Step 3: Cross multiply
    282,914.57x = 390,424.87 × 153,855.81
  4. Step 4: Simplify right side
    282,914.57x = 60,069,134,617.99
  5. Step 5: Solve for x
    x = 60,069,134,617.99/282,914.57
  6. Step 6: Final answer
    x = 212,322.52

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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.