Home / 282,821.66-390,300.80-155,497.25

Finding the Fourth Proportional to 282,821.66, 390,300.80 and 155,497.25

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Solution

The fourth proportional to 282,821.66, 390,300.80 and 155,497.25 is: 214,590.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,821.66 : 390,300.80 = 155,497.25 : x
  2. Step 2: Convert to fraction form
    282,821.66/390,300.80 = 155,497.25/x
  3. Step 3: Cross multiply
    282,821.66x = 390,300.80 × 155,497.25
  4. Step 4: Simplify right side
    282,821.66x = 60,690,701,271.07
  5. Step 5: Solve for x
    x = 60,690,701,271.07/282,821.66
  6. Step 6: Final answer
    x = 214,590.01

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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.