Home / 282,913.04-390,405.48-155,585.36

Finding the Fourth Proportional to 282,913.04, 390,405.48 and 155,585.36

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Solution

The fourth proportional to 282,913.04, 390,405.48 and 155,585.36 is: 214,699.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,913.04 : 390,405.48 = 155,585.36 : x
  2. Step 2: Convert to fraction form
    282,913.04/390,405.48 = 155,585.36/x
  3. Step 3: Cross multiply
    282,913.04x = 390,405.48 × 155,585.36
  4. Step 4: Simplify right side
    282,913.04x = 60,741,377,151.77
  5. Step 5: Solve for x
    x = 60,741,377,151.77/282,913.04
  6. Step 6: Final answer
    x = 214,699.81

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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.