Home / 282,943.24-390,459.63-155,616.10

Finding the Fourth Proportional to 282,943.24, 390,459.63 and 155,616.10

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Solution

The fourth proportional to 282,943.24, 390,459.63 and 155,616.10 is: 214,749.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,943.24 : 390,459.63 = 155,616.10 : x
  2. Step 2: Convert to fraction form
    282,943.24/390,459.63 = 155,616.10/x
  3. Step 3: Cross multiply
    282,943.24x = 390,459.63 × 155,616.10
  4. Step 4: Simplify right side
    282,943.24x = 60,761,804,828.04
  5. Step 5: Solve for x
    x = 60,761,804,828.04/282,943.24
  6. Step 6: Final answer
    x = 214,749.10

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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.